27#include "moc_qgsvectorlayer.cpp"
94#include <QPainterPath>
96#include <QProgressDialog>
100#include <QStringBuilder>
102#include <QUndoCommand>
105#include <QRegularExpression>
122#ifdef TESTPROVIDERLIB
128 const QString &qmlStyle,
129 const QString &sldStyle,
130 const QString &styleName,
131 const QString &styleDescription,
132 const QString &uiFileContent,
146 QStringList &descriptions,
164 const QString &baseName,
165 const QString &providerKey,
171 , mAuxiliaryLayer( nullptr )
172 , mAuxiliaryLayerKey( QString() )
173 , mReadExtentFromXml( options.readExtentFromXml )
174 , mRefreshRendererTimer( new QTimer( this ) )
185 mGeometryOptions = std::make_unique<QgsGeometryOptions>();
189 mStoredExpressionManager->setParent(
this );
192 mJoinBuffer->setParent(
this );
197 if ( !vectorLayerPath.isEmpty() && !
mProviderKey.isEmpty() )
208 mDataSourceReadOnly =
true;
210 setDataSource( vectorLayerPath, baseName, providerKey, providerOptions, providerFlags );
213 for (
const QgsField &field : std::as_const( mFields ) )
215 if ( !mAttributeAliasMap.contains( field.name() ) )
216 mAttributeAliasMap.insert( field.name(), QString() );
222 if ( !mTemporalProperties->
isActive() )
247 connect( mRefreshRendererTimer, &QTimer::timeout,
this, [
this] {
triggerRepaint(
true ); } );
256 delete mDataProvider;
259 delete mExpressionFieldBuffer;
261 delete mDiagramLayerSettings;
262 delete mDiagramRenderer;
267 delete mConditionalStyles;
268 delete mStoredExpressionManager;
270 if ( mFeatureCounter )
271 mFeatureCounter->
cancel();
273 qDeleteAll( mRendererGenerators );
294 options.forceReadOnly = mDataSourceReadOnly;
301 layer->mXmlExtent2D = mXmlExtent2D;
302 layer->mLazyExtent2D = mLazyExtent2D;
303 layer->mValidExtent2D = mValidExtent2D;
304 layer->mXmlExtent3D = mXmlExtent3D;
305 layer->mLazyExtent3D = mLazyExtent3D;
306 layer->mValidExtent3D = mValidExtent3D;
308 QList<QgsVectorLayerJoinInfo> joins =
vectorJoins();
309 const auto constJoins = joins;
331 for (
const QgsAction &action : constActions )
368 auto constraintIt = constraints.constBegin();
369 for ( ; constraintIt != constraints.constEnd(); ++ constraintIt )
385 layer->mElevationProperties = mElevationProperties->
clone();
386 layer->mElevationProperties->setParent( layer );
388 layer->mSelectionProperties = mSelectionProperties->
clone();
389 layer->mSelectionProperties->setParent( layer );
421 return mDataProvider && mDataProvider->
isSqlQuery();
482 p.setPen( QColor( 50, 100, 120, 200 ) );
483 p.setBrush( QColor( 200, 200, 210, 120 ) );
484 p.drawEllipse( x - m, y - m, m * 2 + 1, m * 2 + 1 );
488 p.setPen( QColor( 255, 0, 0 ) );
489 p.drawLine( x - m, y + m, x + m, y - m );
490 p.drawLine( x - m, y - m, x + m, y + m );
502 mSelectedFeatureIds.insert( fid );
503 mPreviousSelectedFeatureIds.clear();
512 mSelectedFeatureIds.unite( featureIds );
513 mPreviousSelectedFeatureIds.clear();
522 mSelectedFeatureIds.remove( fid );
523 mPreviousSelectedFeatureIds.clear();
532 mSelectedFeatureIds.subtract( featureIds );
533 mPreviousSelectedFeatureIds.clear();
548 .setFilterRect( rect )
550 .setNoAttributes() );
555 newSelection << feat.
id();
568 std::optional< QgsExpressionContext > defaultContext;
572 context = &defaultContext.value();
591 newSelection << feat.
id();
613 bool matches = exp.
evaluate( context ).toBool();
617 newSelection << feat.
id();
621 newSelection << feat.
id();
642 newSelection = mSelectedFeatureIds + ids;
646 newSelection = mSelectedFeatureIds - ids;
650 newSelection = mSelectedFeatureIds.intersect( ids );
654 QgsFeatureIds deselectedFeatures = mSelectedFeatureIds - newSelection;
655 mSelectedFeatureIds = newSelection;
656 mPreviousSelectedFeatureIds.clear();
666 if ( !intersectingIds.isEmpty() )
668 QgsDebugMsgLevel( QStringLiteral(
"Trying to select and deselect the same item at the same time. Unsure what to do. Selecting dubious items." ), 3 );
671 mSelectedFeatureIds -= deselectIds;
672 mSelectedFeatureIds += selectIds;
673 mPreviousSelectedFeatureIds.clear();
683 ids.subtract( mSelectedFeatureIds );
702 .setFilterRect( rect )
704 .setNoAttributes() );
712 if ( mSelectedFeatureIds.contains( fet.
id() ) )
714 deselectIds << fet.
id();
718 selectIds << fet.
id();
729 if ( mSelectedFeatureIds.isEmpty() )
734 mPreviousSelectedFeatureIds = previous;
741 if ( mPreviousSelectedFeatureIds.isEmpty() || !mSelectedFeatureIds.empty() )
752 return mDataProvider;
760 return mDataProvider;
768 return mSelectionProperties;
775 return mTemporalProperties;
782 return mElevationProperties;
798 if (
isValid() && mDataProvider && mDataProvider->
encoding() != encoding )
809 delete mDiagramRenderer;
810 mDiagramRenderer = r;
834 if ( !
isValid() || !
isSpatial() || mSelectedFeatureIds.isEmpty() || !mDataProvider )
846 .setFilterFids( mSelectedFeatureIds )
847 .setNoAttributes() );
860 .setNoAttributes() );
864 if ( mSelectedFeatureIds.contains( fet.
id() ) )
875 if ( retval.
width() == 0.0 || retval.
height() == 0.0 )
884 retval.
set( -1.0, -1.0, 1.0, 1.0 );
896 return mLabelsEnabled &&
static_cast< bool >( mLabeling );
903 mLabelsEnabled = enabled;
911 if ( !mDiagramRenderer || !mDiagramLayerSettings )
914 QList<QgsDiagramSettings> settingList = mDiagramRenderer->
diagramSettings();
915 if ( !settingList.isEmpty() )
917 return settingList.at( 0 ).enabled;
926 if ( !mSymbolFeatureCounted )
929 return mSymbolFeatureCountMap.value( legendKey, -1 );
936 if ( !mSymbolFeatureCounted )
939 return mSymbolFeatureIdMap.value( legendKey,
QgsFeatureIds() );
945 if ( ( mSymbolFeatureCounted || mFeatureCounter ) && !( storeSymbolFids && mSymbolFeatureIdMap.isEmpty() ) )
946 return mFeatureCounter;
948 mSymbolFeatureCountMap.clear();
949 mSymbolFeatureIdMap.clear();
954 return mFeatureCounter;
956 if ( !mDataProvider )
959 return mFeatureCounter;
964 return mFeatureCounter;
967 if ( !mFeatureCounter || ( storeSymbolFids && mSymbolFeatureIdMap.isEmpty() ) )
970 connect( mFeatureCounter, &
QgsTask::taskCompleted,
this, &QgsVectorLayer::onFeatureCounterCompleted, Qt::UniqueConnection );
971 connect( mFeatureCounter, &
QgsTask::taskTerminated,
this, &QgsVectorLayer::onFeatureCounterTerminated, Qt::UniqueConnection );
975 return mFeatureCounter;
983 if ( force || !mReadExtentFromXml || ( mReadExtentFromXml && mXmlExtent2D.
isNull() && mXmlExtent3D.
isNull() ) )
985 mValidExtent2D =
false;
986 mValidExtent3D =
false;
995 mValidExtent2D =
true;
1003 mValidExtent3D =
true;
1010 if ( !mDefaultValueOnUpdateFields.isEmpty() )
1015 int size = mFields.
size();
1016 for (
int idx : std::as_const( mDefaultValueOnUpdateFields ) )
1018 if ( idx < 0 || idx >= size )
1041 updateExtent( mDataProvider->
extent() );
1042 mValidExtent2D =
true;
1043 mLazyExtent2D =
false;
1047 if ( !mValidExtent2D && mLazyExtent2D && mReadExtentFromXml && !mXmlExtent2D.
isNull() )
1049 updateExtent( mXmlExtent2D );
1050 mValidExtent2D =
true;
1051 mLazyExtent2D =
false;
1054 if ( !mValidExtent2D && mLazyExtent2D && mDataProvider && mDataProvider->
isValid() )
1057 updateExtent( mDataProvider->
extent() );
1058 mValidExtent2D =
true;
1059 mLazyExtent2D =
false;
1062 QgsDebugMsgLevel( QStringLiteral(
"2D Extent of layer: %1" ).arg( mExtent2D.toString() ), 3 );
1066 if ( mValidExtent2D )
1069 if ( !
isValid() || !mDataProvider )
1071 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1075 if ( !mEditBuffer ||
1089 if ( mEditBuffer && !mDataProvider->
transaction() )
1092 for ( QgsFeatureMap::const_iterator it = addedFeatures.constBegin(); it != addedFeatures.constEnd(); ++it )
1094 if ( it->hasGeometry() )
1105 .setNoAttributes() );
1118 if ( rect.xMinimum() > rect.xMaximum() && rect.yMinimum() > rect.yMaximum() )
1124 updateExtent( rect );
1125 mValidExtent2D =
true;
1154 updateExtent( mDataProvider->
extent3D() );
1155 mValidExtent3D =
true;
1156 mLazyExtent3D =
false;
1160 if ( !mValidExtent3D && mLazyExtent3D && mReadExtentFromXml && !mXmlExtent3D.
isNull() )
1162 updateExtent( mXmlExtent3D );
1163 mValidExtent3D =
true;
1164 mLazyExtent3D =
false;
1167 if ( !mValidExtent3D && mLazyExtent3D && mDataProvider && mDataProvider->
isValid() )
1170 updateExtent( mDataProvider->
extent3D() );
1171 mValidExtent3D =
true;
1172 mLazyExtent3D =
false;
1175 QgsDebugMsgLevel( QStringLiteral(
"3D Extent of layer: %1" ).arg( mExtent3D.toString() ), 3 );
1179 if ( mValidExtent3D )
1182 if ( !
isValid() || !mDataProvider )
1184 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1188 if ( !mEditBuffer ||
1199 extent.combineWith( ext );
1202 if ( mEditBuffer && !mDataProvider->
transaction() )
1205 for ( QgsFeatureMap::const_iterator it = addedFeatures.constBegin(); it != addedFeatures.constEnd(); ++it )
1207 if ( it->hasGeometry() )
1209 const QgsBox3D bbox = it->geometry().boundingBox3D();
1210 extent.combineWith( bbox );
1218 .setNoAttributes() );
1226 extent.combineWith( bb );
1238 mValidExtent3D =
true;
1264 if ( !
isValid() || !mDataProvider )
1266 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1267 return customProperty( QStringLiteral(
"storedSubsetString" ) ).toString();
1276 if ( !
isValid() || !mDataProvider )
1278 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider or while editing" ), 3 );
1282 else if ( mEditBuffer )
1314 double maximumSimplificationScale = mSimplifyMethod.
maximumScale();
1317 return !( maximumSimplificationScale > 1 && renderContext.
rendererScale() <= maximumSimplificationScale );
1326 return mConditionalStyles;
1334 if ( !
isValid() || !mDataProvider )
1346 if ( feature.isValid() )
1347 return feature.geometry();
1356 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1360 if ( mGeometryOptions->isActive() )
1363 mGeometryOptions->apply( geom );
1367 bool success = mEditBuffer->
addFeature( feature );
1371 success = mJoinBuffer->
addFeature( feature );
1381 if ( !mEditBuffer || !mDataProvider )
1387 if ( currentFeature.
isValid() )
1389 bool hasChanged =
false;
1390 bool hasError =
false;
1402 QgsDebugMsgLevel( QStringLiteral(
"geometry of feature %1 could not be changed." ).arg( updatedFeature.
id() ), 3 );
1409 for (
int attr = 0; attr < fa.count(); ++attr )
1419 QgsDebugMsgLevel( QStringLiteral(
"attribute %1 of feature %2 could not be changed." ).arg( attr ).arg( updatedFeature.
id() ), 3 );
1424 if ( hasChanged && !mDefaultValueOnUpdateFields.isEmpty() && !skipDefaultValues )
1425 updateDefaultValues( updatedFeature.
id(), updatedFeature );
1431 QgsDebugMsgLevel( QStringLiteral(
"feature %1 could not be retrieved" ).arg( updatedFeature.
id() ), 3 );
1441 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1445 bool result = utils.
insertVertex( x, y, atFeatureId, beforeVertex );
1456 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1460 bool result = utils.
insertVertex( point, atFeatureId, beforeVertex );
1471 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1475 bool result = utils.
moveVertex( x, y, atFeatureId, atVertex );
1486 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1490 bool result = utils.
moveVertex( p, atFeatureId, atVertex );
1501 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1528 int count = mSelectedFeatureIds.size();
1541 *deletedCount = deleted;
1544 return deleted == count;
1547static const QgsPointSequence vectorPointXY2pointSequence(
const QVector<QgsPointXY> &points )
1550 pts.reserve( points.size() );
1551 QVector<QgsPointXY>::const_iterator it = points.constBegin();
1552 while ( it != points.constEnd() )
1563 return addRing( vectorPointXY2pointSequence( ring ), featureId );
1570 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1577 if ( !mSelectedFeatureIds.isEmpty() )
1579 result = utils.
addRing( ring, mSelectedFeatureIds, featureId );
1595 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1616 if ( !mSelectedFeatureIds.isEmpty() )
1618 result = utils.
addRing(
static_cast< QgsCurve *
>( ring->
clone() ), mSelectedFeatureIds, featureId );
1636 pts.reserve( points.size() );
1637 for ( QList<QgsPointXY>::const_iterator it = points.constBegin(); it != points.constEnd() ; ++it )
1644#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
1649 return addPart( vectorPointXY2pointSequence( points ) );
1657 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1662 if ( mSelectedFeatureIds.empty() )
1667 else if ( mSelectedFeatureIds.size() > 1 )
1685 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1690 if ( mSelectedFeatureIds.empty() )
1695 else if ( mSelectedFeatureIds.size() > 1 )
1714 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1729 return splitParts( vectorPointXY2pointSequence( splitLine ), topologicalEditing );
1736 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1740 return utils.
splitParts( splitLine, topologicalEditing );
1747 return splitFeatures( vectorPointXY2pointSequence( splitLine ), topologicalEditing );
1756 bool preserveCircular =
false;
1757 return splitFeatures( &splitLineString, topologyTestPoints, preserveCircular, topologicalEditing );
1764 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1768 return utils.
splitFeatures( curve, topologyTestPoints, preserveCircular, topologicalEditing );
1775 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1793 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1804 if ( !
mValid || !mEditBuffer || !mDataProvider )
1829 if ( !
isValid() || !mDataProvider )
1863 if ( mDataProvider )
1879 if ( !mRenderer->
accept( visitor ) )
1883 if ( !mLabeling->
accept( visitor ) )
1896 QDomNode pkeyNode = layer_node.namedItem( QStringLiteral(
"provider" ) );
1898 if ( pkeyNode.isNull() )
1904 QDomElement pkeyElt = pkeyNode.toElement();
1914 else if (
mDataSource.contains( QLatin1String(
"dbname=" ) ) )
1923 const QDomElement elem = layer_node.toElement();
1937 if ( elem.hasAttribute( QStringLiteral(
"wkbType" ) ) )
1938 mWkbType =
qgsEnumKeyToValue( elem.attribute( QStringLiteral(
"wkbType" ) ), mWkbType );
1941 QDomElement pkeyElem = pkeyNode.toElement();
1942 if ( !pkeyElem.isNull() )
1944 QString encodingString = pkeyElem.attribute( QStringLiteral(
"encoding" ) );
1945 if ( mDataProvider && !encodingString.isEmpty() )
1952 mJoinBuffer->
readXml( layer_node );
1957 mSetLegendFromStyle =
false;
1967 QDomNode depsNode = layer_node.namedItem( QStringLiteral(
"dataDependencies" ) );
1968 QDomNodeList depsNodes = depsNode.childNodes();
1969 QSet<QgsMapLayerDependency> sources;
1970 for (
int i = 0; i < depsNodes.count(); i++ )
1972 QString
source = depsNodes.at( i ).toElement().attribute( QStringLiteral(
"id" ) );
1977 if ( !mSetLegendFromStyle )
1983 mReadExtentFromXml =
true;
1985 if ( mReadExtentFromXml )
1987 const QDomNode extentNode = layer_node.namedItem( QStringLiteral(
"extent" ) );
1988 if ( !extentNode.isNull() )
1992 const QDomNode extent3DNode = layer_node.namedItem( QStringLiteral(
"extent3D" ) );
1993 if ( !extent3DNode.isNull() )
2000 const QDomNode asNode = layer_node.namedItem( QStringLiteral(
"auxiliaryLayer" ) );
2001 const QDomElement asElem = asNode.toElement();
2002 if ( !asElem.isNull() )
2004 mAuxiliaryLayerKey = asElem.attribute( QStringLiteral(
"key" ) );
2008 mServerProperties->readXml( layer_node );
2015void QgsVectorLayer::setDataSourcePrivate(
const QString &dataSource,
const QString &baseName,
const QString &provider,
2024 setDataProvider( provider, options,
flags );
2034 bool loadDefaultStyleFlag =
false;
2037 loadDefaultStyleFlag =
true;
2043 std::unique_ptr< QgsScopedRuntimeProfile > profile;
2045 profile = std::make_unique< QgsScopedRuntimeProfile >( tr(
"Load layer style" ), QStringLiteral(
"projectload" ) );
2047 bool defaultLoadedFlag =
false;
2055 mSetLegendFromStyle =
false;
2060 if ( !defaultLoadedFlag && loadDefaultStyleFlag )
2068 std::unique_ptr< QgsFeatureRenderer > defaultRenderer( mDataProvider->
createRenderer() );
2069 if ( defaultRenderer )
2071 defaultLoadedFlag =
true;
2077 if ( !defaultLoadedFlag )
2083 if ( !mSetLegendFromStyle )
2088 std::unique_ptr< QgsAbstractVectorLayerLabeling > defaultLabeling( mDataProvider->
createLabeling() );
2089 if ( defaultLabeling )
2096 styleChangedSignalBlocker.release();
2113 QStringList ids, names, descriptions;
2114 QString errorMessage;
2116 const int relatedStylesCount {
listStylesInDatabase( ids, names, descriptions, errorMessage ) };
2117 Q_ASSERT( ids.count() == names.count() );
2118 const QString currentStyleName { mStyleManager->currentStyle() };
2119 for (
int i = 0; i < relatedStylesCount; ++i )
2121 if ( names.at( i ) == currentStyleName )
2125 errorMessage.clear();
2127 if ( ! styleXml.isEmpty() && errorMessage.isEmpty() )
2133 QgsDebugMsgLevel( QStringLiteral(
"Error retrieving style %1 from DB: %2" ).arg( ids.at( i ), errorMessage ), 2 );
2143 std::unique_ptr< QgsFeatureRenderer > defaultRenderer( mDataProvider->
createRenderer() );
2144 if ( defaultRenderer )
2160 delete mDataProvider;
2167 if ( provider.compare( QLatin1String(
"postgres" ) ) == 0 )
2169 const QString checkUnicityKey { QStringLiteral(
"checkPrimaryKeyUnicity" ) };
2171 if ( ! uri.hasParam( checkUnicityKey ) )
2173 uri.setParam( checkUnicityKey, mReadExtentFromXml ?
"0" :
"1" );
2178 std::unique_ptr< QgsScopedRuntimeProfile > profile;
2180 profile = std::make_unique< QgsScopedRuntimeProfile >( tr(
"Create %1 provider" ).arg( provider ), QStringLiteral(
"projectload" ) );
2183 mDataProvider = qobject_cast< QgsVectorDataProvider * >(
mPreloadedProvider.release() );
2187 if ( !mDataProvider )
2194 mDataProvider->setParent(
this );
2197 QgsDebugMsgLevel( QStringLiteral(
"Instantiated the data provider plugin" ), 2 );
2207 profile->switchTask( tr(
"Read layer metadata" ) );
2214 newMetadata.
combine( &mMetadata );
2217 QgsDebugMsgLevel( QStringLiteral(
"Set Data provider QgsLayerMetadata identifier[%1]" ).arg(
metadata().identifier() ), 4 );
2224 mWkbType = mDataProvider->
wkbType();
2229 for (
const QgsField &field : providerFields )
2232 if ( !field.editorWidgetSetup().isNull() && mFieldWidgetSetups.value( field.name() ).isNull() )
2234 mFieldWidgetSetups[ field.name() ] = field.editorWidgetSetup();
2236 if ( !field.alias().isEmpty() && mAttributeAliasMap.value( field.name() ).isEmpty() )
2238 mAttributeAliasMap[ field.name() ] = field.alias();
2240 if ( !mAttributeSplitPolicy.contains( field.name() ) )
2242 mAttributeSplitPolicy[ field.name() ] = field.splitPolicy();
2244 if ( !mAttributeDuplicatePolicy.contains( field.name() ) )
2246 mAttributeDuplicatePolicy[ field.name() ] = field.duplicatePolicy();
2251 profile->switchTask( tr(
"Read layer fields" ) );
2262 const thread_local QRegularExpression reg( R
"lit("[^"]+"\."([^"] + )"( \([^)]+\))?)lit" );
2263 const QRegularExpressionMatch match = reg.match(
name() );
2264 if ( match.hasMatch() )
2266 QStringList stuff = match.capturedTexts();
2267 QString lName = stuff[1];
2271 QMap<QString, QgsMapLayer *>::const_iterator it;
2272 for ( it = layers.constBegin(); it != layers.constEnd() && ( *it )->name() != lName; ++it )
2275 if ( it != layers.constEnd() && stuff.size() > 2 )
2277 lName +=
'.' + stuff[2].mid( 2, stuff[2].length() - 3 );
2280 if ( !lName.isEmpty() )
2290 else if ( provider == QLatin1String(
"ogr" ) )
2294 if (
mDataSource.right( 10 ) == QLatin1String(
"|layerid=0" ) )
2297 else if ( provider == QLatin1String(
"memory" ) )
2302 else if ( provider == QLatin1String(
"hana" ) )
2319 QDomDocument &document,
2326 QDomElement mapLayerNode = layer_node.toElement();
2328 if ( mapLayerNode.isNull() || (
"maplayer" != mapLayerNode.nodeName() ) )
2341 if ( mDataProvider )
2343 QDomElement provider = document.createElement( QStringLiteral(
"provider" ) );
2344 provider.setAttribute( QStringLiteral(
"encoding" ), mDataProvider->
encoding() );
2345 QDomText providerText = document.createTextNode(
providerType() );
2346 provider.appendChild( providerText );
2347 layer_node.appendChild( provider );
2351 mJoinBuffer->
writeXml( layer_node, document );
2354 QDomElement dependenciesElement = document.createElement( QStringLiteral(
"layerDependencies" ) );
2360 QDomElement depElem = document.createElement( QStringLiteral(
"layer" ) );
2361 depElem.setAttribute( QStringLiteral(
"id" ), dep.layerId() );
2362 dependenciesElement.appendChild( depElem );
2364 layer_node.appendChild( dependenciesElement );
2367 QDomElement dataDependenciesElement = document.createElement( QStringLiteral(
"dataDependencies" ) );
2372 QDomElement depElem = document.createElement( QStringLiteral(
"layer" ) );
2373 depElem.setAttribute( QStringLiteral(
"id" ), dep.layerId() );
2374 dataDependenciesElement.appendChild( depElem );
2376 layer_node.appendChild( dataDependenciesElement );
2379 mExpressionFieldBuffer->
writeXml( layer_node, document );
2384 QDomElement asElem = document.createElement( QStringLiteral(
"auxiliaryLayer" ) );
2385 if ( mAuxiliaryLayer )
2387 const QString pkField = mAuxiliaryLayer->joinInfo().targetFieldName();
2388 asElem.setAttribute( QStringLiteral(
"key" ), pkField );
2390 layer_node.appendChild( asElem );
2393 mServerProperties->writeXml( layer_node, document );
2397 return writeSymbology( layer_node, document, errorMsg, context );
2436 if ( categories.testFlag(
Fields ) )
2438 if ( !mExpressionFieldBuffer )
2440 mExpressionFieldBuffer->
readXml( layerNode );
2450 QDomNodeList referencedLayersNodeList = layerNode.toElement().elementsByTagName( QStringLiteral(
"referencedLayers" ) );
2451 if ( referencedLayersNodeList.size() > 0 )
2453 const QDomNodeList relationNodes { referencedLayersNodeList.at( 0 ).childNodes() };
2454 for (
int i = 0; i < relationNodes.length(); ++i )
2456 const QDomElement relationElement = relationNodes.at( i ).toElement();
2463 QDomNodeList referencingLayersNodeList = layerNode.toElement().elementsByTagName( QStringLiteral(
"referencingLayers" ) );
2464 if ( referencingLayersNodeList.size() > 0 )
2466 const QDomNodeList relationNodes { referencingLayersNodeList.at( 0 ).childNodes() };
2467 for (
int i = 0; i < relationNodes.length(); ++i )
2469 const QDomElement relationElement = relationNodes.at( i ).toElement();
2475 QDomElement layerElement = layerNode.toElement();
2479 readStyle( layerNode, errorMessage, context, categories );
2481 if ( categories.testFlag(
MapTips ) )
2483 QDomElement mapTipElem = layerNode.namedItem( QStringLiteral(
"mapTip" ) ).toElement();
2485 setMapTipsEnabled( mapTipElem.attribute( QStringLiteral(
"enabled" ), QStringLiteral(
"1" ) ).toInt() == 1 );
2489 mDisplayExpression = layerNode.namedItem( QStringLiteral(
"previewExpression" ) ).toElement().text();
2492 QString
displayField = layerNode.namedItem( QStringLiteral(
"displayfield" ) ).toElement().text();
2496 if ( mMapTipTemplate.isEmpty() && categories.testFlag(
MapTips ) )
2506 if ( categories.testFlag(
Actions ) )
2507 mActions->
readXml( layerNode );
2509 if ( categories.testFlag(
Fields ) )
2514 QDomNode aliasesNode = layerNode.namedItem( QStringLiteral(
"aliases" ) );
2515 if ( !aliasesNode.isNull() )
2517 QDomElement aliasElem;
2519 QDomNodeList aliasNodeList = aliasesNode.toElement().elementsByTagName( QStringLiteral(
"alias" ) );
2520 for (
int i = 0; i < aliasNodeList.size(); ++i )
2522 aliasElem = aliasNodeList.at( i ).toElement();
2525 if ( aliasElem.hasAttribute( QStringLiteral(
"field" ) ) )
2527 field = aliasElem.attribute( QStringLiteral(
"field" ) );
2531 int index = aliasElem.attribute( QStringLiteral(
"index" ) ).toInt();
2533 if ( index >= 0 && index <
fields().count() )
2539 if ( !aliasElem.attribute( QStringLiteral(
"name" ) ).isEmpty() )
2542 alias = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ), aliasElem.attribute( QStringLiteral(
"name" ) ) );
2543 QgsDebugMsgLevel(
"context" + QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ) +
" source " + aliasElem.attribute( QStringLiteral(
"name" ) ), 3 );
2548 alias = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ), field );
2549 QgsDebugMsgLevel(
"context" + QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ) +
" source " + field, 3 );
2551 if ( alias == aliasElem.attribute( QStringLiteral(
"field" ) ) )
2555 QgsDebugMsgLevel(
"field " + field +
" origalias " + aliasElem.attribute( QStringLiteral(
"name" ) ) +
" trans " + alias, 3 );
2556 mAttributeAliasMap.insert( field, alias );
2563 const QDomNode splitPoliciesNode = layerNode.namedItem( QStringLiteral(
"splitPolicies" ) );
2564 if ( !splitPoliciesNode.isNull() )
2566 const QDomNodeList splitPolicyNodeList = splitPoliciesNode.toElement().elementsByTagName( QStringLiteral(
"policy" ) );
2567 for (
int i = 0; i < splitPolicyNodeList.size(); ++i )
2569 const QDomElement splitPolicyElem = splitPolicyNodeList.at( i ).toElement();
2570 const QString field = splitPolicyElem.attribute( QStringLiteral(
"field" ) );
2572 mAttributeSplitPolicy.insert( field, policy );
2577 mAttributeDuplicatePolicy.clear();
2578 const QDomNode duplicatePoliciesNode = layerNode.namedItem( QStringLiteral(
"duplicatePolicies" ) );
2579 if ( !duplicatePoliciesNode.isNull() )
2581 const QDomNodeList duplicatePolicyNodeList = duplicatePoliciesNode.toElement().elementsByTagName( QStringLiteral(
"policy" ) );
2582 for (
int i = 0; i < duplicatePolicyNodeList.size(); ++i )
2584 const QDomElement duplicatePolicyElem = duplicatePolicyNodeList.at( i ).toElement();
2585 const QString field = duplicatePolicyElem.attribute( QStringLiteral(
"field" ) );
2587 mAttributeDuplicatePolicy.insert( field, policy );
2592 mDefaultExpressionMap.clear();
2593 QDomNode defaultsNode = layerNode.namedItem( QStringLiteral(
"defaults" ) );
2594 if ( !defaultsNode.isNull() )
2596 QDomNodeList defaultNodeList = defaultsNode.toElement().elementsByTagName( QStringLiteral(
"default" ) );
2597 for (
int i = 0; i < defaultNodeList.size(); ++i )
2599 QDomElement defaultElem = defaultNodeList.at( i ).toElement();
2601 QString field = defaultElem.attribute( QStringLiteral(
"field" ), QString() );
2602 QString expression = defaultElem.attribute( QStringLiteral(
"expression" ), QString() );
2603 bool applyOnUpdate = defaultElem.attribute( QStringLiteral(
"applyOnUpdate" ), QStringLiteral(
"0" ) ) == QLatin1String(
"1" );
2604 if ( field.isEmpty() || expression.isEmpty() )
2607 mDefaultExpressionMap.insert( field,
QgsDefaultValue( expression, applyOnUpdate ) );
2612 mFieldConstraints.clear();
2613 mFieldConstraintStrength.clear();
2614 QDomNode constraintsNode = layerNode.namedItem( QStringLiteral(
"constraints" ) );
2615 if ( !constraintsNode.isNull() )
2617 QDomNodeList constraintNodeList = constraintsNode.toElement().elementsByTagName( QStringLiteral(
"constraint" ) );
2618 for (
int i = 0; i < constraintNodeList.size(); ++i )
2620 QDomElement constraintElem = constraintNodeList.at( i ).toElement();
2622 QString field = constraintElem.attribute( QStringLiteral(
"field" ), QString() );
2623 int constraints = constraintElem.attribute( QStringLiteral(
"constraints" ), QStringLiteral(
"0" ) ).toInt();
2624 if ( field.isEmpty() || constraints == 0 )
2629 int uniqueStrength = constraintElem.attribute( QStringLiteral(
"unique_strength" ), QStringLiteral(
"1" ) ).toInt();
2630 int notNullStrength = constraintElem.attribute( QStringLiteral(
"notnull_strength" ), QStringLiteral(
"1" ) ).toInt();
2631 int expStrength = constraintElem.attribute( QStringLiteral(
"exp_strength" ), QStringLiteral(
"1" ) ).toInt();
2638 mFieldConstraintExpressions.clear();
2639 QDomNode constraintExpressionsNode = layerNode.namedItem( QStringLiteral(
"constraintExpressions" ) );
2640 if ( !constraintExpressionsNode.isNull() )
2642 QDomNodeList constraintNodeList = constraintExpressionsNode.toElement().elementsByTagName( QStringLiteral(
"constraint" ) );
2643 for (
int i = 0; i < constraintNodeList.size(); ++i )
2645 QDomElement constraintElem = constraintNodeList.at( i ).toElement();
2647 QString field = constraintElem.attribute( QStringLiteral(
"field" ), QString() );
2648 QString exp = constraintElem.attribute( QStringLiteral(
"exp" ), QString() );
2649 QString desc = constraintElem.attribute( QStringLiteral(
"desc" ), QString() );
2650 if ( field.isEmpty() || exp.isEmpty() )
2653 mFieldConstraintExpressions.insert( field, qMakePair( exp, desc ) );
2661 if ( categories.testFlag(
Fields ) || categories.testFlag(
Forms ) )
2665 QDomElement widgetsElem = layerNode.namedItem( QStringLiteral(
"fieldConfiguration" ) ).toElement();
2666 QDomNodeList fieldConfigurationElementList = widgetsElem.elementsByTagName( QStringLiteral(
"field" ) );
2667 for (
int i = 0; i < fieldConfigurationElementList.size(); ++i )
2669 const QDomElement fieldConfigElement = fieldConfigurationElementList.at( i ).toElement();
2670 const QDomElement fieldWidgetElement = fieldConfigElement.elementsByTagName( QStringLiteral(
"editWidget" ) ).at( 0 ).toElement();
2672 QString fieldName = fieldConfigElement.attribute( QStringLiteral(
"name" ) );
2674 if ( categories.testFlag(
Fields ) )
2678 if ( categories.testFlag(
Forms ) )
2680 const QString widgetType = fieldWidgetElement.attribute( QStringLiteral(
"type" ) );
2681 const QDomElement cfgElem = fieldConfigElement.elementsByTagName( QStringLiteral(
"config" ) ).at( 0 ).toElement();
2682 const QDomElement optionsElem = cfgElem.childNodes().at( 0 ).toElement();
2684 if ( widgetType == QLatin1String(
"ValueRelation" ) )
2686 optionsMap[ QStringLiteral(
"Value" ) ] = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fields:%2:valuerelationvalue" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text(), fieldName ), optionsMap[ QStringLiteral(
"Value" ) ].toString() );
2689 mFieldWidgetSetups[fieldName] = setup;
2696 if ( categories.testFlag(
Fields ) )
2698 const QList<QPair<QString, Qgis::FieldConfigurationFlag>> legacyConfig
2703 for (
const auto &config : legacyConfig )
2705 QDomNode excludeNode = layerNode.namedItem( config.first );
2706 if ( !excludeNode.isNull() )
2708 QDomNodeList attributeNodeList = excludeNode.toElement().elementsByTagName( QStringLiteral(
"attribute" ) );
2709 for (
int i = 0; i < attributeNodeList.size(); ++i )
2711 QString fieldName = attributeNodeList.at( i ).toElement().text();
2712 if ( !mFieldConfigurationFlags.contains( fieldName ) )
2713 mFieldConfigurationFlags[fieldName] = config.second;
2715 mFieldConfigurationFlags[fieldName].setFlag( config.second,
true );
2722 mGeometryOptions->readXml( layerNode.namedItem( QStringLiteral(
"geometryOptions" ) ) );
2724 if ( categories.testFlag(
Forms ) )
2725 mEditFormConfig.
readXml( layerNode, context );
2729 mAttributeTableConfig.
readXml( layerNode );
2730 mConditionalStyles->
readXml( layerNode, context );
2731 mStoredExpressionManager->
readXml( layerNode );
2737 QDomElement mapLayerNode = layerNode.toElement();
2739 && mapLayerNode.attribute( QStringLiteral(
"readOnly" ), QStringLiteral(
"0" ) ).toInt() == 1 )
2744 if ( categories.testFlag(
Legend ) )
2748 const QDomElement legendElem = layerNode.firstChildElement( QStringLiteral(
"legend" ) );
2749 if ( !legendElem.isNull() )
2754 mSetLegendFromStyle =
true;
2784 if ( !rendererElement.isNull() )
2802 if ( mSelectionProperties )
2803 mSelectionProperties->
readXml( node.toElement(), context );
2807 if ( categories.testFlag(
Labeling ) )
2811 QDomElement labelingElement = node.firstChildElement( QStringLiteral(
"labeling" ) );
2813 if ( labelingElement.isNull() ||
2814 ( labelingElement.attribute( QStringLiteral(
"type" ) ) == QLatin1String(
"simple" ) && labelingElement.firstChildElement( QStringLiteral(
"settings" ) ).isNull() ) )
2822 labeling = readLabelingFromCustomProperties();
2830 if ( node.toElement().hasAttribute( QStringLiteral(
"labelsEnabled" ) ) )
2831 mLabelsEnabled = node.toElement().attribute( QStringLiteral(
"labelsEnabled" ) ).toInt();
2833 mLabelsEnabled =
true;
2839 QDomNode blendModeNode = node.namedItem( QStringLiteral(
"blendMode" ) );
2840 if ( !blendModeNode.isNull() )
2842 QDomElement e = blendModeNode.toElement();
2847 QDomNode featureBlendModeNode = node.namedItem( QStringLiteral(
"featureBlendMode" ) );
2848 if ( !featureBlendModeNode.isNull() )
2850 QDomElement e = featureBlendModeNode.toElement();
2858 QDomNode layerTransparencyNode = node.namedItem( QStringLiteral(
"layerTransparency" ) );
2859 if ( !layerTransparencyNode.isNull() )
2861 QDomElement e = layerTransparencyNode.toElement();
2862 setOpacity( 1.0 - e.text().toInt() / 100.0 );
2864 QDomNode layerOpacityNode = node.namedItem( QStringLiteral(
"layerOpacity" ) );
2865 if ( !layerOpacityNode.isNull() )
2867 QDomElement e = layerOpacityNode.toElement();
2871 const bool hasScaleBasedVisibiliy { node.attributes().namedItem( QStringLiteral(
"hasScaleBasedVisibilityFlag" ) ).nodeValue() ==
'1' };
2874 const double maxScale { node.attributes().namedItem( QStringLiteral(
"maxScale" ) ).nodeValue().toDouble( &ok ) };
2879 const double minScale { node.attributes().namedItem( QStringLiteral(
"minScale" ) ).nodeValue().toDouble( &ok ) };
2885 QDomElement e = node.toElement();
2890 mSimplifyMethod.
setThreshold( e.attribute( QStringLiteral(
"simplifyDrawingTol" ), QStringLiteral(
"1" ) ).toFloat() );
2891 mSimplifyMethod.
setForceLocalOptimization( e.attribute( QStringLiteral(
"simplifyLocal" ), QStringLiteral(
"1" ) ).toInt() );
2892 mSimplifyMethod.
setMaximumScale( e.attribute( QStringLiteral(
"simplifyMaxScale" ), QStringLiteral(
"1" ) ).toFloat() );
2895 mRenderer->
setReferenceScale( e.attribute( QStringLiteral(
"symbologyReferenceScale" ), QStringLiteral(
"-1" ) ).toDouble() );
2899 if ( categories.testFlag(
Diagrams ) )
2903 delete mDiagramRenderer;
2904 mDiagramRenderer =
nullptr;
2905 QDomElement singleCatDiagramElem = node.firstChildElement( QStringLiteral(
"SingleCategoryDiagramRenderer" ) );
2906 if ( !singleCatDiagramElem.isNull() )
2909 mDiagramRenderer->
readXml( singleCatDiagramElem, context );
2911 QDomElement linearDiagramElem = node.firstChildElement( QStringLiteral(
"LinearlyInterpolatedDiagramRenderer" ) );
2912 if ( !linearDiagramElem.isNull() )
2914 if ( linearDiagramElem.hasAttribute( QStringLiteral(
"classificationAttribute" ) ) )
2917 int idx = linearDiagramElem.attribute( QStringLiteral(
"classificationAttribute" ) ).toInt();
2918 if ( idx >= 0 && idx < mFields.
count() )
2919 linearDiagramElem.setAttribute( QStringLiteral(
"classificationField" ), mFields.
at( idx ).
name() );
2923 mDiagramRenderer->
readXml( linearDiagramElem, context );
2925 QDomElement stackedDiagramElem = node.firstChildElement( QStringLiteral(
"StackedDiagramRenderer" ) );
2926 if ( !stackedDiagramElem.isNull() )
2929 mDiagramRenderer->
readXml( stackedDiagramElem, context );
2932 if ( mDiagramRenderer )
2934 QDomElement diagramSettingsElem = node.firstChildElement( QStringLiteral(
"DiagramLayerSettings" ) );
2935 if ( !diagramSettingsElem.isNull() )
2937 bool oldXPos = diagramSettingsElem.hasAttribute( QStringLiteral(
"xPosColumn" ) );
2938 bool oldYPos = diagramSettingsElem.hasAttribute( QStringLiteral(
"yPosColumn" ) );
2939 bool oldShow = diagramSettingsElem.hasAttribute( QStringLiteral(
"showColumn" ) );
2940 if ( oldXPos || oldYPos || oldShow )
2946 int xPosColumn = diagramSettingsElem.attribute( QStringLiteral(
"xPosColumn" ) ).toInt();
2947 if ( xPosColumn >= 0 && xPosColumn < mFields.
count() )
2952 int yPosColumn = diagramSettingsElem.attribute( QStringLiteral(
"yPosColumn" ) ).toInt();
2953 if ( yPosColumn >= 0 && yPosColumn < mFields.
count() )
2958 int showColumn = diagramSettingsElem.attribute( QStringLiteral(
"showColumn" ) ).toInt();
2959 if ( showColumn >= 0 && showColumn < mFields.
count() )
2962 QDomElement propertiesElem = diagramSettingsElem.ownerDocument().createElement( QStringLiteral(
"properties" ) );
2969 ddp.
writeXml( propertiesElem, defs );
2970 diagramSettingsElem.appendChild( propertiesElem );
2973 delete mDiagramLayerSettings;
2975 mDiagramLayerSettings->
readXml( diagramSettingsElem );
2981 styleChangedSignalBlocker.release();
2993 QDomElement layerElement = node.toElement();
2996 ( void )
writeStyle( node, doc, errorMessage, context, categories );
2999 mGeometryOptions->writeXml( node );
3004 if ( !legendElement.isNull() )
3005 node.appendChild( legendElement );
3014 QDomElement referencedLayersElement = doc.createElement( QStringLiteral(
"referencedLayers" ) );
3015 node.appendChild( referencedLayersElement );
3017 const QList<QgsRelation>
referencingRelations { p->relationManager()->referencingRelations(
this ) };
3020 switch ( rel.type() )
3031 QDomElement referencingLayersElement = doc.createElement( QStringLiteral(
"referencingLayers" ) );
3032 node.appendChild( referencedLayersElement );
3034 const QList<QgsRelation> referencedRelations { p->relationManager()->referencedRelations(
this ) };
3035 for (
const QgsRelation &rel : referencedRelations )
3037 switch ( rel.type() )
3050 if ( categories.testFlag(
Fields ) || categories.testFlag(
Forms ) )
3052 QDomElement fieldConfigurationElement;
3054 fieldConfigurationElement = doc.createElement( QStringLiteral(
"fieldConfiguration" ) );
3055 node.appendChild( fieldConfigurationElement );
3057 for (
const QgsField &field : std::as_const( mFields ) )
3059 QDomElement fieldElement = doc.createElement( QStringLiteral(
"field" ) );
3060 fieldElement.setAttribute( QStringLiteral(
"name" ), field.name() );
3061 fieldConfigurationElement.appendChild( fieldElement );
3063 if ( categories.testFlag(
Fields ) )
3065 fieldElement.setAttribute( QStringLiteral(
"configurationFlags" ),
qgsFlagValueToKeys( field.configurationFlags() ) );
3068 if ( categories.testFlag(
Forms ) )
3073 QDomElement editWidgetElement = doc.createElement( QStringLiteral(
"editWidget" ) );
3074 fieldElement.appendChild( editWidgetElement );
3075 editWidgetElement.setAttribute( QStringLiteral(
"type" ), field.editorWidgetSetup().type() );
3076 QDomElement editWidgetConfigElement = doc.createElement( QStringLiteral(
"config" ) );
3079 editWidgetElement.appendChild( editWidgetConfigElement );
3085 if ( categories.testFlag(
Fields ) )
3088 QDomElement aliasElem = doc.createElement( QStringLiteral(
"aliases" ) );
3089 for (
const QgsField &field : std::as_const( mFields ) )
3091 QDomElement aliasEntryElem = doc.createElement( QStringLiteral(
"alias" ) );
3092 aliasEntryElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3093 aliasEntryElem.setAttribute( QStringLiteral(
"index" ), mFields.
indexFromName( field.name() ) );
3094 aliasEntryElem.setAttribute( QStringLiteral(
"name" ), field.alias() );
3095 aliasElem.appendChild( aliasEntryElem );
3097 node.appendChild( aliasElem );
3101 QDomElement splitPoliciesElement = doc.createElement( QStringLiteral(
"splitPolicies" ) );
3102 for (
const QgsField &field : std::as_const( mFields ) )
3104 QDomElement splitPolicyElem = doc.createElement( QStringLiteral(
"policy" ) );
3105 splitPolicyElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3106 splitPolicyElem.setAttribute( QStringLiteral(
"policy" ),
qgsEnumValueToKey( field.splitPolicy() ) );
3107 splitPoliciesElement.appendChild( splitPolicyElem );
3109 node.appendChild( splitPoliciesElement );
3114 QDomElement duplicatePoliciesElement = doc.createElement( QStringLiteral(
"duplicatePolicies" ) );
3115 for (
const QgsField &field : std::as_const( mFields ) )
3117 QDomElement duplicatePolicyElem = doc.createElement( QStringLiteral(
"policy" ) );
3118 duplicatePolicyElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3119 duplicatePolicyElem.setAttribute( QStringLiteral(
"policy" ),
qgsEnumValueToKey( field.duplicatePolicy() ) );
3120 duplicatePoliciesElement.appendChild( duplicatePolicyElem );
3122 node.appendChild( duplicatePoliciesElement );
3126 QDomElement defaultsElem = doc.createElement( QStringLiteral(
"defaults" ) );
3127 for (
const QgsField &field : std::as_const( mFields ) )
3129 QDomElement defaultElem = doc.createElement( QStringLiteral(
"default" ) );
3130 defaultElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3131 defaultElem.setAttribute( QStringLiteral(
"expression" ), field.defaultValueDefinition().expression() );
3132 defaultElem.setAttribute( QStringLiteral(
"applyOnUpdate" ), field.defaultValueDefinition().applyOnUpdate() ? QStringLiteral(
"1" ) : QStringLiteral(
"0" ) );
3133 defaultsElem.appendChild( defaultElem );
3135 node.appendChild( defaultsElem );
3138 QDomElement constraintsElem = doc.createElement( QStringLiteral(
"constraints" ) );
3139 for (
const QgsField &field : std::as_const( mFields ) )
3141 QDomElement constraintElem = doc.createElement( QStringLiteral(
"constraint" ) );
3142 constraintElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3143 constraintElem.setAttribute( QStringLiteral(
"constraints" ), field.constraints().constraints() );
3148 constraintsElem.appendChild( constraintElem );
3150 node.appendChild( constraintsElem );
3153 QDomElement constraintExpressionsElem = doc.createElement( QStringLiteral(
"constraintExpressions" ) );
3154 for (
const QgsField &field : std::as_const( mFields ) )
3156 QDomElement constraintExpressionElem = doc.createElement( QStringLiteral(
"constraint" ) );
3157 constraintExpressionElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3158 constraintExpressionElem.setAttribute( QStringLiteral(
"exp" ), field.constraints().constraintExpression() );
3159 constraintExpressionElem.setAttribute( QStringLiteral(
"desc" ), field.constraints().constraintDescription() );
3160 constraintExpressionsElem.appendChild( constraintExpressionElem );
3162 node.appendChild( constraintExpressionsElem );
3165 if ( !mExpressionFieldBuffer )
3173 mExpressionFieldBuffer->
writeXml( node, doc );
3178 if ( categories.testFlag(
Actions ) )
3183 mAttributeTableConfig.
writeXml( node );
3184 mConditionalStyles->
writeXml( node, doc, context );
3185 mStoredExpressionManager->
writeXml( node );
3188 if ( categories.testFlag(
Forms ) )
3189 mEditFormConfig.
writeXml( node, context );
3193 node.toElement().setAttribute( QStringLiteral(
"readOnly" ), mReadOnly );
3198 QDomElement prevExpElem = doc.createElement( QStringLiteral(
"previewExpression" ) );
3199 QDomText prevExpText = doc.createTextNode( mDisplayExpression );
3200 prevExpElem.appendChild( prevExpText );
3201 node.appendChild( prevExpElem );
3205 if ( categories.testFlag(
MapTips ) )
3207 QDomElement mapTipElem = doc.createElement( QStringLiteral(
"mapTip" ) );
3208 mapTipElem.setAttribute( QStringLiteral(
"enabled" ),
mapTipsEnabled() );
3209 QDomText mapTipText = doc.createTextNode( mMapTipTemplate );
3210 mapTipElem.appendChild( mapTipText );
3211 node.toElement().appendChild( mapTipElem );
3222 QDomElement mapLayerNode = node.toElement();
3235 QDomElement rendererElement = mRenderer->
save( doc, context );
3236 node.appendChild( rendererElement );
3238 if ( mSelectionProperties )
3240 mSelectionProperties->
writeXml( mapLayerNode, doc, context );
3244 if ( categories.testFlag(
Labeling ) )
3248 QDomElement labelingElement = mLabeling->
save( doc, context );
3249 node.appendChild( labelingElement );
3251 mapLayerNode.setAttribute( QStringLiteral(
"labelsEnabled" ), mLabelsEnabled ? QStringLiteral(
"1" ) : QStringLiteral(
"0" ) );
3257 mapLayerNode.setAttribute( QStringLiteral(
"simplifyDrawingHints" ), QString::number(
static_cast< int >( mSimplifyMethod.
simplifyHints() ) ) );
3258 mapLayerNode.setAttribute( QStringLiteral(
"simplifyAlgorithm" ), QString::number(
static_cast< int >( mSimplifyMethod.
simplifyAlgorithm() ) ) );
3259 mapLayerNode.setAttribute( QStringLiteral(
"simplifyDrawingTol" ), QString::number( mSimplifyMethod.
threshold() ) );
3260 mapLayerNode.setAttribute( QStringLiteral(
"simplifyLocal" ), mSimplifyMethod.
forceLocalOptimization() ? 1 : 0 );
3261 mapLayerNode.setAttribute( QStringLiteral(
"simplifyMaxScale" ), QString::number( mSimplifyMethod.
maximumScale() ) );
3273 QDomElement blendModeElem = doc.createElement( QStringLiteral(
"blendMode" ) );
3275 blendModeElem.appendChild( blendModeText );
3276 node.appendChild( blendModeElem );
3279 QDomElement featureBlendModeElem = doc.createElement( QStringLiteral(
"featureBlendMode" ) );
3281 featureBlendModeElem.appendChild( featureBlendModeText );
3282 node.appendChild( featureBlendModeElem );
3288 QDomElement layerOpacityElem = doc.createElement( QStringLiteral(
"layerOpacity" ) );
3289 QDomText layerOpacityText = doc.createTextNode( QString::number(
opacity() ) );
3290 layerOpacityElem.appendChild( layerOpacityText );
3291 node.appendChild( layerOpacityElem );
3292 mapLayerNode.setAttribute( QStringLiteral(
"hasScaleBasedVisibilityFlag" ),
hasScaleBasedVisibility() ? 1 : 0 );
3293 mapLayerNode.setAttribute( QStringLiteral(
"maxScale" ),
maximumScale() );
3294 mapLayerNode.setAttribute( QStringLiteral(
"minScale" ),
minimumScale() );
3296 mapLayerNode.setAttribute( QStringLiteral(
"symbologyReferenceScale" ), mRenderer ? mRenderer->
referenceScale() : -1 );
3299 if ( categories.testFlag(
Diagrams ) && mDiagramRenderer )
3301 mDiagramRenderer->
writeXml( mapLayerNode, doc, context );
3302 if ( mDiagramLayerSettings )
3303 mDiagramLayerSettings->
writeXml( mapLayerNode, doc );
3314 QDomElement nameElem = node.firstChildElement( QStringLiteral(
"Name" ) );
3315 if ( nameElem.isNull() )
3317 errorMessage = QStringLiteral(
"Warning: Name element not found within NamedLayer while it's required." );
3333 readSldLabeling( node );
3335 styleChangedSignalBlocker.release();
3345 Q_UNUSED( errorMessage )
3347 QVariantMap localProps = QVariantMap( props );
3356 QDomElement nameNode = doc.createElement( QStringLiteral(
"se:Name" ) );
3357 nameNode.appendChild( doc.createTextNode(
name() ) );
3358 node.appendChild( nameNode );
3360 QDomElement userStyleElem = doc.createElement( QStringLiteral(
"UserStyle" ) );
3361 node.appendChild( userStyleElem );
3363 QDomElement nameElem = doc.createElement( QStringLiteral(
"se:Name" ) );
3364 nameElem.appendChild( doc.createTextNode(
name() ) );
3366 userStyleElem.appendChild( nameElem );
3368 QDomElement featureTypeStyleElem = doc.createElement( QStringLiteral(
"se:FeatureTypeStyle" ) );
3369 userStyleElem.appendChild( featureTypeStyleElem );
3371 mRenderer->
toSld( doc, featureTypeStyleElem, localProps );
3374 mLabeling->
toSld( featureTypeStyleElem, localProps );
3385 if ( !mEditBuffer || !mDataProvider )
3390 if ( mGeometryOptions->isActive() )
3391 mGeometryOptions->apply( geom );
3400 if ( !skipDefaultValue && !mDefaultValueOnUpdateFields.isEmpty() )
3401 updateDefaultValues( fid );
3411 bool result =
false;
3413 switch (
fields().fieldOrigin( field ) )
3425 if ( mEditBuffer && mDataProvider )
3434 if ( result && !skipDefaultValues && !mDefaultValueOnUpdateFields.isEmpty() )
3452 for (
auto it = newValues.constBegin(); it != newValues.constEnd(); ++it )
3454 const int field = it.key();
3455 const QVariant newValue = it.value();
3458 if ( oldValues.contains( field ) )
3459 oldValue = oldValues[field];
3464 newValuesJoin[field] = newValue;
3465 oldValuesJoin[field] = oldValue;
3472 newValuesNotJoin[field] = newValue;
3473 oldValuesNotJoin[field] = oldValue;
3482 if ( ! newValuesJoin.isEmpty() && mJoinBuffer )
3487 if ( ! newValuesNotJoin.isEmpty() )
3489 if ( mEditBuffer && mDataProvider )
3495 if ( result && !skipDefaultValues && !mDefaultValueOnUpdateFields.isEmpty() )
3507 if ( !mEditBuffer || !mDataProvider )
3517 if ( attIndex < 0 || attIndex >=
fields().count() )
3521 mFields[ attIndex ].setAlias( QString() );
3522 if ( mAttributeAliasMap.contains(
name ) )
3524 mAttributeAliasMap.remove(
name );
3526 mEditFormConfig.setFields( mFields );
3535 if ( index < 0 || index >=
fields().count() )
3542 if ( mExpressionFieldBuffer )
3558 if ( !mEditBuffer || !mDataProvider )
3576 if ( attIndex < 0 || attIndex >=
fields().count() )
3581 mAttributeAliasMap.insert(
name, aliasString );
3582 mFields[ attIndex ].setAlias( aliasString );
3583 mEditFormConfig.setFields( mFields );
3591 if ( index < 0 || index >=
fields().count() )
3601 if ( index >= 0 && index < mFields.
count() )
3611 return mAttributeAliasMap;
3618 if ( index < 0 || index >=
fields().count() )
3623 mAttributeSplitPolicy.insert(
name, policy );
3624 mFields[ index ].setSplitPolicy( policy );
3625 mEditFormConfig.setFields( mFields );
3633 if ( index < 0 || index >=
fields().count() )
3638 mAttributeDuplicatePolicy.insert(
name, policy );
3639 mFields[ index ].setDuplicatePolicy( policy );
3640 mEditFormConfig.setFields( mFields );
3649 QSet<QString> excludeList;
3650 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
3651 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
3655 excludeList << flagsIt.key();
3665 QMap< QString, Qgis::FieldConfigurationFlags >::iterator flagsIt = mFieldConfigurationFlags.begin();
3666 for ( ; flagsIt != mFieldConfigurationFlags.end(); ++flagsIt )
3677 QSet<QString> excludeList;
3678 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
3679 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
3683 excludeList << flagsIt.key();
3693 QMap< QString, Qgis::FieldConfigurationFlags >::iterator flagsIt = mFieldConfigurationFlags.begin();
3694 for ( ; flagsIt != mFieldConfigurationFlags.end(); ++flagsIt )
3705 if ( index < 0 || index >=
fields().count() )
3714 if ( !mEditBuffer || !mDataProvider )
3724 bool deleted =
false;
3727 QList<int> attrList = qgis::setToList( qgis::listToSet( attrs ) );
3729 std::sort( attrList.begin(), attrList.end(), std::greater<int>() );
3731 for (
int attr : std::as_const( attrList ) )
3749 if ( context && context->
cascade )
3752 const bool hasRelationsOrJoins = !relations.empty() || mJoinBuffer->
containsJoins();
3753 if ( hasRelationsOrJoins )
3758 if ( handledFeatureIds.contains( fid ) )
3766 handledFeatureIds << fid;
3778 switch ( relation.strength() )
3786 while ( relatedFeaturesIt.
nextFeature( childFeature ) )
3788 childFeatureIds.insert( childFeature.
id() );
3790 if ( childFeatureIds.count() > 0 )
3792 relation.referencingLayer()->startEditing();
3793 relation.referencingLayer()->deleteFeatures( childFeatureIds, context );
3820 return deleteFeatureCascade( fid, context );
3833 res = deleteFeatureCascade( fid, context ) && res;
3842 mSelectedFeatureIds.subtract( fids );
3862 if ( !mDataProvider )
3863 return pkAttributesList;
3866 for (
int i = 0; i < mFields.
count(); ++i )
3870 pkAttributesList << i;
3873 return pkAttributesList;
3880 if ( !mDataProvider )
3893 if ( mEditBuffer && !deletedFeatures.empty() )
3895 if ( addedFeatures.size() > deletedFeatures.size() )
3901 if ( ( !mEditBuffer || addedFeatures.empty() ) && mDataProvider && mDataProvider->
empty() )
3914 mCommitErrors.clear();
3916 if ( !mDataProvider )
3918 mCommitErrors << tr(
"ERROR: no provider" );
3924 mCommitErrors << tr(
"ERROR: layer not editable" );
3930 if ( !mAllowCommit )
3933 mCommitChangesActive =
true;
3935 bool success =
false;
3941 mCommitChangesActive =
false;
3943 if ( !mDeletedFids.empty() )
3946 mDeletedFids.clear();
3991 return mCommitErrors;
4006 if ( !mDataProvider )
4008 mCommitErrors << tr(
"ERROR: no provider" );
4034 mEditBuffer =
nullptr;
4039 if ( rollbackExtent )
4052 return mSelectedFeatureIds.size();
4060 return mSelectedFeatureIds;
4068 features.reserve( mSelectedFeatureIds.count() );
4075 features.push_back( f );
4085 if ( mSelectedFeatureIds.isEmpty() )
4091 if ( mSelectedFeatureIds.count() == 1 )
4092 request.
setFilterFid( *mSelectedFeatureIds.constBegin() );
4103 if ( !mEditBuffer || !mDataProvider )
4106 if ( mGeometryOptions->isActive() )
4108 for (
auto feature = features.begin(); feature != features.end(); ++feature )
4111 mGeometryOptions->apply( geom );
4138 if ( exp.isField() )
4161 if ( !mDisplayExpression.isEmpty() || mFields.
isEmpty() )
4163 return mDisplayExpression;
4168 if ( !candidateName.isEmpty() )
4191 return ( mEditBuffer && mDataProvider );
4203bool QgsVectorLayer::isReadOnly()
const
4207 return mDataSourceReadOnly || mReadOnly;
4215 if ( readonly && mEditBuffer )
4219 if ( !readonly && mDataSourceReadOnly )
4222 mReadOnly = readonly;
4231 if ( ! mDataProvider )
4234 if ( mDataSourceReadOnly )
4245 return mEditBuffer && mEditBuffer->
isModified();
4252 bool auxiliaryField =
false;
4256 return auxiliaryField;
4263 auxiliaryField =
true;
4266 return auxiliaryField;
4282 if ( r != mRenderer )
4286 mSymbolFeatureCounted =
false;
4287 mSymbolFeatureCountMap.clear();
4288 mSymbolFeatureIdMap.clear();
4293 if ( refreshRate <= 0 )
4295 mRefreshRendererTimer->stop();
4296 mRefreshRendererTimer->setInterval( 0 );
4300 mRefreshRendererTimer->setInterval( 1000 / refreshRate );
4301 mRefreshRendererTimer->start();
4316 mRendererGenerators << generator;
4324 for (
int i = mRendererGenerators.count() - 1; i >= 0; --i )
4326 if ( mRendererGenerators.at( i )->id() ==
id )
4328 delete mRendererGenerators.at( i );
4329 mRendererGenerators.removeAt( i );
4339 QList< const QgsFeatureRendererGenerator * > res;
4349 if ( !mDataProvider )
4355 QString ignoredError;
4359 mEditCommandActive =
true;
4367 if ( !mDataProvider )
4372 mEditCommandActive =
false;
4373 if ( !mDeletedFids.isEmpty() )
4377 mSelectedFeatureIds.subtract( mDeletedFids );
4380 mDeletedFids.clear();
4389 if ( !mDataProvider )
4400 auto command = std::make_unique< QUndoCommand >();
4401 command->setObsolete(
true );
4404 mEditCommandActive =
false;
4405 mDeletedFids.clear();
4413 return mJoinBuffer->
addJoin( joinInfo );
4420 return mJoinBuffer->
removeJoin( joinLayerId );
4461 if ( oi < 0 || oi >= mExpressionFieldBuffer->
expressions().size() )
4464 return mExpressionFieldBuffer->
expressions().at( oi ).cachedExpression.expression();
4480 if ( !mDataProvider )
4485 mFields = mDataProvider->
fields();
4495 if ( mExpressionFieldBuffer )
4499 for (
auto aliasIt = mAttributeAliasMap.constBegin(); aliasIt != mAttributeAliasMap.constEnd(); ++aliasIt )
4505 mFields[ index ].setAlias( aliasIt.value() );
4508 for (
auto splitPolicyIt = mAttributeSplitPolicy.constBegin(); splitPolicyIt != mAttributeSplitPolicy.constEnd(); ++splitPolicyIt )
4510 int index = mFields.
lookupField( splitPolicyIt.key() );
4514 mFields[ index ].setSplitPolicy( splitPolicyIt.value() );
4517 for (
auto duplicatePolicyIt = mAttributeDuplicatePolicy.constBegin(); duplicatePolicyIt != mAttributeDuplicatePolicy.constEnd(); ++duplicatePolicyIt )
4519 int index = mFields.
lookupField( duplicatePolicyIt.key() );
4523 mFields[ index ].setDuplicatePolicy( duplicatePolicyIt.value() );
4527 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
4528 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
4534 mFields[index].setConfigurationFlags( flagsIt.value() );
4538 mDefaultValueOnUpdateFields.clear();
4539 QMap< QString, QgsDefaultValue >::const_iterator defaultIt = mDefaultExpressionMap.constBegin();
4540 for ( ; defaultIt != mDefaultExpressionMap.constEnd(); ++defaultIt )
4542 int index = mFields.
lookupField( defaultIt.key() );
4546 mFields[ index ].setDefaultValueDefinition( defaultIt.value() );
4547 if ( defaultIt.value().applyOnUpdate() )
4548 mDefaultValueOnUpdateFields.insert( index );
4551 QMap< QString, QgsFieldConstraints::Constraints >::const_iterator constraintIt = mFieldConstraints.constBegin();
4552 for ( ; constraintIt != mFieldConstraints.constEnd(); ++constraintIt )
4554 int index = mFields.
lookupField( constraintIt.key() );
4567 mFields[ index ].setConstraints( constraints );
4570 QMap< QString, QPair< QString, QString > >::const_iterator constraintExpIt = mFieldConstraintExpressions.constBegin();
4571 for ( ; constraintExpIt != mFieldConstraintExpressions.constEnd(); ++constraintExpIt )
4573 int index = mFields.
lookupField( constraintExpIt.key() );
4584 mFields[ index ].setConstraints( constraints );
4588 for ( ; constraintStrengthIt != mFieldConstraintStrength.constEnd(); ++constraintStrengthIt )
4590 int index = mFields.
lookupField( constraintStrengthIt.key().first );
4600 constraints.
setConstraintStrength( constraintStrengthIt.key().second, constraintStrengthIt.value() );
4601 mFields[ index ].setConstraints( constraints );
4604 auto fieldWidgetIterator = mFieldWidgetSetups.constBegin();
4605 for ( ; fieldWidgetIterator != mFieldWidgetSetups.constEnd(); ++ fieldWidgetIterator )
4607 int index = mFields.
indexOf( fieldWidgetIterator.key() );
4611 mFields[index].setEditorWidgetSetup( fieldWidgetIterator.value() );
4614 if ( oldFields != mFields )
4617 mEditFormConfig.setFields( mFields );
4626 if ( index < 0 || index >= mFields.
count() || !mDataProvider )
4630 if ( expression.isEmpty() )
4634 std::unique_ptr< QgsExpressionContext > tempContext;
4639 evalContext = tempContext.get();
4674 if ( index < 0 || index >= mFields.
count() )
4679 mDefaultExpressionMap.insert( mFields.
at( index ).
name(), definition );
4683 mDefaultExpressionMap.remove( mFields.
at( index ).
name() );
4692 if ( index < 0 || index >= mFields.
count() )
4703 if ( !mDataProvider )
4718 if ( mEditBuffer && ! mDataProvider->
transaction() )
4722 for (
const QVariant &v : constUniqueValues )
4724 vals << v.toString();
4728 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4729 while ( addedIt.hasNext() && ( limit < 0 ||
uniqueValues.count() < limit ) )
4732 QVariant v = addedIt.value().attribute( index );
4735 QString vs = v.toString();
4736 if ( !vals.contains( vs ) )
4745 while ( it.hasNext() && ( limit < 0 ||
uniqueValues.count() < limit ) )
4748 QVariant v = it.value().value( index );
4751 QString vs = v.toString();
4752 if ( !vals.contains( vs ) )
4785 .setSubsetOfAttributes( attList ) );
4788 QVariant currentValue;
4789 QHash<QString, QVariant> val;
4793 val.insert( currentValue.toString(), currentValue );
4794 if ( limit >= 0 && val.size() >= limit )
4800 return qgis::listToSet( val.values() );
4804 Q_ASSERT_X(
false,
"QgsVectorLayer::uniqueValues()",
"Unknown source of the field!" );
4812 QStringList results;
4813 if ( !mDataProvider )
4828 if ( mEditBuffer && ! mDataProvider->
transaction() )
4831 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4832 while ( addedIt.hasNext() && ( limit < 0 || results.count() < limit ) && ( !feedback || !feedback->
isCanceled() ) )
4835 QVariant v = addedIt.value().attribute( index );
4838 QString vs = v.toString();
4839 if ( vs.contains( substring, Qt::CaseInsensitive ) && !results.contains( vs ) )
4847 while ( it.hasNext() && ( limit < 0 || results.count() < limit ) && ( !feedback || !feedback->
isCanceled() ) )
4850 QVariant v = it.value().value( index );
4853 QString vs = v.toString();
4854 if ( vs.contains( substring, Qt::CaseInsensitive ) && !results.contains( vs ) )
4885 QString fieldName = mFields.
at( index ).
name();
4886 request.
setFilterExpression( QStringLiteral(
"\"%1\" ILIKE '%%2%'" ).arg( fieldName, substring ) );
4890 QString currentValue;
4893 currentValue = f.
attribute( index ).toString();
4894 if ( !results.contains( currentValue ) )
4895 results << currentValue;
4897 if ( ( limit >= 0 && results.size() >= limit ) || ( feedback && feedback->
isCanceled() ) )
4907 Q_ASSERT_X(
false,
"QgsVectorLayer::uniqueStringsMatching()",
"Unknown source of the field!" );
4916 minimumOrMaximumValue( index, &minimum,
nullptr );
4925 minimumOrMaximumValue( index,
nullptr, &maximum );
4933 minimumOrMaximumValue( index, &minimum, &maximum );
4936void QgsVectorLayer::minimumOrMaximumValue(
int index, QVariant *minimum, QVariant *maximum )
const
4941 *minimum = QVariant();
4943 *maximum = QVariant();
4945 if ( !mDataProvider )
4965 if ( mEditBuffer && ! mDataProvider->
transaction() )
4968 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4969 while ( addedIt.hasNext() )
4972 const QVariant v = addedIt.value().attribute( index );
4980 while ( it.hasNext() )
4983 const QVariant v = it.value().value( index );
5019 .setSubsetOfAttributes( attList ) );
5022 bool firstValue =
true;
5025 const QVariant currentValue = f.
attribute( index );
5032 *minimum = currentValue;
5034 *maximum = currentValue;
5039 if ( minimum && currentValue.isValid() &&
qgsVariantLessThan( currentValue, *minimum ) )
5040 *minimum = currentValue;
5042 *maximum = currentValue;
5049 Q_ASSERT_X(
false,
"QgsVectorLayer::minimumOrMaximumValue()",
"Unknown source of the field!" );
5052void QgsVectorLayer::createEditBuffer()
5088void QgsVectorLayer::clearEditBuffer()
5093 mEditBuffer =
nullptr;
5108 if ( !mDataProvider )
5111 *
error = tr(
"Layer is invalid" );
5117 if ( attrIndex >= 0 )
5124 bool providerOk =
false;
5125 QVariant val = mDataProvider->
aggregate(
aggregate, attrIndex, parameters, context, providerOk, fids );
5139 c.setFidsFilter( *fids );
5140 c.setParameters( parameters );
5141 bool aggregateOk =
false;
5142 const QVariant result =
c.calculate(
aggregate, fieldOrExpression, context, &aggregateOk, feedback );
5145 if ( !aggregateOk &&
error )
5168 return mFeatureBlendMode;
5171void QgsVectorLayer::readSldLabeling(
const QDomNode &node )
5178 QDomElement element = node.toElement();
5179 if ( element.isNull() )
5182 QDomElement userStyleElem = element.firstChildElement( QStringLiteral(
"UserStyle" ) );
5183 if ( userStyleElem.isNull() )
5185 QgsDebugMsgLevel( QStringLiteral(
"Info: UserStyle element not found." ), 4 );
5189 QDomElement featTypeStyleElem = userStyleElem.firstChildElement( QStringLiteral(
"FeatureTypeStyle" ) );
5190 if ( featTypeStyleElem.isNull() )
5192 QgsDebugMsgLevel( QStringLiteral(
"Info: FeatureTypeStyle element not found." ), 4 );
5197 QDomElement mergedFeatTypeStyle = featTypeStyleElem.cloneNode(
false ).toElement();
5202 bool needRuleBasedLabeling =
false;
5205 while ( !featTypeStyleElem.isNull() )
5207 QDomElement ruleElem = featTypeStyleElem.firstChildElement( QStringLiteral(
"Rule" ) );
5208 while ( !ruleElem.isNull() )
5212 bool hasTextSymbolizer =
false;
5213 bool hasRuleBased =
false;
5214 QDomElement ruleChildElem = ruleElem.firstChildElement();
5215 while ( !ruleChildElem.isNull() )
5218 if ( ruleChildElem.localName() == QLatin1String(
"Filter" ) ||
5219 ruleChildElem.localName() == QLatin1String(
"MinScaleDenominator" ) ||
5220 ruleChildElem.localName() == QLatin1String(
"MaxScaleDenominator" ) )
5222 hasRuleBased =
true;
5225 else if ( ruleChildElem.localName() == QLatin1String(
"TextSymbolizer" ) )
5227 QgsDebugMsgLevel( QStringLiteral(
"Info: TextSymbolizer element found" ), 4 );
5228 hasTextSymbolizer =
true;
5231 ruleChildElem = ruleChildElem.nextSiblingElement();
5234 if ( hasTextSymbolizer )
5239 mergedFeatTypeStyle.appendChild( ruleElem.cloneNode().toElement() );
5243 QgsDebugMsgLevel( QStringLiteral(
"Info: Filter or Min/MaxScaleDenominator element found: need a RuleBasedLabeling" ), 4 );
5244 needRuleBasedLabeling =
true;
5249 if ( ruleCount > 1 )
5251 QgsDebugMsgLevel( QStringLiteral(
"Info: More Rule elements found: need a RuleBasedLabeling" ), 4 );
5252 needRuleBasedLabeling =
true;
5256 if ( ruleCount == 0 )
5258 needRuleBasedLabeling =
false;
5261 ruleElem = ruleElem.nextSiblingElement( QStringLiteral(
"Rule" ) );
5263 featTypeStyleElem = featTypeStyleElem.nextSiblingElement( QStringLiteral(
"FeatureTypeStyle" ) );
5266 if ( ruleCount == 0 )
5268 QgsDebugMsgLevel( QStringLiteral(
"Info: No TextSymbolizer element." ), 4 );
5272 QDomElement ruleElem = mergedFeatTypeStyle.firstChildElement( QStringLiteral(
"Rule" ) );
5274 if ( needRuleBasedLabeling )
5278 while ( !ruleElem.isNull() )
5281 QString label, description, filterExp;
5282 int scaleMinDenom = 0, scaleMaxDenom = 0;
5286 QDomElement childElem = ruleElem.firstChildElement();
5287 while ( !childElem.isNull() )
5289 if ( childElem.localName() == QLatin1String(
"Name" ) )
5293 if ( label.isEmpty() )
5294 label = childElem.firstChild().nodeValue();
5296 else if ( childElem.localName() == QLatin1String(
"Description" ) )
5299 QDomElement titleElem = childElem.firstChildElement( QStringLiteral(
"Title" ) );
5300 if ( !titleElem.isNull() )
5302 label = titleElem.firstChild().nodeValue();
5305 QDomElement abstractElem = childElem.firstChildElement( QStringLiteral(
"Abstract" ) );
5306 if ( !abstractElem.isNull() )
5308 description = abstractElem.firstChild().nodeValue();
5311 else if ( childElem.localName() == QLatin1String(
"Abstract" ) )
5314 description = childElem.firstChild().nodeValue();
5316 else if ( childElem.localName() == QLatin1String(
"Title" ) )
5319 label = childElem.firstChild().nodeValue();
5321 else if ( childElem.localName() == QLatin1String(
"Filter" ) )
5337 else if ( childElem.localName() == QLatin1String(
"MinScaleDenominator" ) )
5340 int v = childElem.firstChild().nodeValue().toInt( &ok );
5344 else if ( childElem.localName() == QLatin1String(
"MaxScaleDenominator" ) )
5347 int v = childElem.firstChild().nodeValue().toInt( &ok );
5351 else if ( childElem.localName() == QLatin1String(
"TextSymbolizer" ) )
5353 readSldTextSymbolizer( childElem, settings );
5356 childElem = childElem.nextSiblingElement();
5362 ruleElem = ruleElem.nextSiblingElement();
5372 QDomElement textSymbolizerElem = ruleElem.firstChildElement( QStringLiteral(
"TextSymbolizer" ) );
5374 if ( readSldTextSymbolizer( textSymbolizerElem, s ) )
5382bool QgsVectorLayer::readSldTextSymbolizer(
const QDomNode &node,
QgsPalLayerSettings &settings )
const
5386 if ( node.localName() != QLatin1String(
"TextSymbolizer" ) )
5388 QgsDebugMsgLevel( QStringLiteral(
"Not a TextSymbolizer element: %1" ).arg( node.localName() ), 3 );
5391 QDomElement textSymbolizerElem = node.toElement();
5393 QDomElement labelElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Label" ) );
5394 if ( !labelElem.isNull() )
5396 QDomElement propertyNameElem = labelElem.firstChildElement( QStringLiteral(
"PropertyName" ) );
5397 if ( !propertyNameElem.isNull() )
5402 QString labelAttribute = propertyNameElem.text();
5406 int fieldIndex = mFields.
lookupField( labelAttribute );
5407 if ( fieldIndex == -1 )
5423 QgsDebugMsgLevel( QStringLiteral(
"Info: PropertyName element not found." ), 4 );
5434 if ( textSymbolizerElem.hasAttribute( QStringLiteral(
"uom" ) ) )
5439 QString fontFamily = QStringLiteral(
"Sans-Serif" );
5440 int fontPointSize = 10;
5442 int fontWeight = -1;
5443 bool fontItalic =
false;
5444 bool fontUnderline =
false;
5447 QDomElement fontElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Font" ) );
5448 if ( !fontElem.isNull() )
5451 for ( QgsStringMap::iterator it = fontSvgParams.begin(); it != fontSvgParams.end(); ++it )
5453 QgsDebugMsgLevel( QStringLiteral(
"found fontSvgParams %1: %2" ).arg( it.key(), it.value() ), 4 );
5455 if ( it.key() == QLatin1String(
"font-family" ) )
5457 fontFamily = it.value();
5459 else if ( it.key() == QLatin1String(
"font-style" ) )
5461 fontItalic = ( it.value() == QLatin1String(
"italic" ) ) || ( it.value() == QLatin1String(
"Italic" ) );
5463 else if ( it.key() == QLatin1String(
"font-size" ) )
5466 int fontSize = it.value().toInt( &ok );
5469 fontPointSize = fontSize;
5470 fontUnitSize = sldUnitSize;
5473 else if ( it.key() == QLatin1String(
"font-weight" ) )
5475 if ( ( it.value() == QLatin1String(
"bold" ) ) || ( it.value() == QLatin1String(
"Bold" ) ) )
5476 fontWeight = QFont::Bold;
5478 else if ( it.key() == QLatin1String(
"font-underline" ) )
5480 fontUnderline = ( it.value() == QLatin1String(
"underline" ) ) || ( it.value() == QLatin1String(
"Underline" ) );
5486 QFont font( fontFamily, fontPointSize, fontWeight, fontItalic );
5487 font.setUnderline( fontUnderline );
5489 format.
setSize( fontPointSize );
5493 QDomElement fillElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Fill" ) );
5495 Qt::BrushStyle textBrush = Qt::SolidPattern;
5497 if ( textColor.isValid() )
5499 QgsDebugMsgLevel( QStringLiteral(
"Info: textColor %1." ).arg( QVariant( textColor ).toString() ), 4 );
5506 QDomElement haloElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Halo" ) );
5507 if ( !haloElem.isNull() )
5512 QDomElement radiusElem = haloElem.firstChildElement( QStringLiteral(
"Radius" ) );
5513 if ( !radiusElem.isNull() )
5516 double bufferSize = radiusElem.text().toDouble( &ok );
5519 bufferSettings.
setSize( bufferSize );
5524 QDomElement haloFillElem = haloElem.firstChildElement( QStringLiteral(
"Fill" ) );
5526 Qt::BrushStyle bufferBrush = Qt::SolidPattern;
5528 if ( bufferColor.isValid() )
5530 QgsDebugMsgLevel( QStringLiteral(
"Info: bufferColor %1." ).arg( QVariant( bufferColor ).toString() ), 4 );
5531 bufferSettings.
setColor( bufferColor );
5536 QDomElement labelPlacementElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"LabelPlacement" ) );
5537 if ( !labelPlacementElem.isNull() )
5540 QDomElement pointPlacementElem = labelPlacementElem.firstChildElement( QStringLiteral(
"PointPlacement" ) );
5541 if ( !pointPlacementElem.isNull() )
5549 QDomElement displacementElem = pointPlacementElem.firstChildElement( QStringLiteral(
"Displacement" ) );
5550 if ( !displacementElem.isNull() )
5552 QDomElement displacementXElem = displacementElem.firstChildElement( QStringLiteral(
"DisplacementX" ) );
5553 if ( !displacementXElem.isNull() )
5556 double xOffset = displacementXElem.text().toDouble( &ok );
5563 QDomElement displacementYElem = displacementElem.firstChildElement( QStringLiteral(
"DisplacementY" ) );
5564 if ( !displacementYElem.isNull() )
5567 double yOffset = displacementYElem.text().toDouble( &ok );
5575 QDomElement anchorPointElem = pointPlacementElem.firstChildElement( QStringLiteral(
"AnchorPoint" ) );
5576 if ( !anchorPointElem.isNull() )
5578 QDomElement anchorPointXElem = anchorPointElem.firstChildElement( QStringLiteral(
"AnchorPointX" ) );
5579 if ( !anchorPointXElem.isNull() )
5582 double xOffset = anchorPointXElem.text().toDouble( &ok );
5589 QDomElement anchorPointYElem = anchorPointElem.firstChildElement( QStringLiteral(
"AnchorPointY" ) );
5590 if ( !anchorPointYElem.isNull() )
5593 double yOffset = anchorPointYElem.text().toDouble( &ok );
5602 QDomElement rotationElem = pointPlacementElem.firstChildElement( QStringLiteral(
"Rotation" ) );
5603 if ( !rotationElem.isNull() )
5606 double rotation = rotationElem.text().toDouble( &ok );
5616 QDomElement linePlacementElem = labelPlacementElem.firstChildElement( QStringLiteral(
"LinePlacement" ) );
5617 if ( !linePlacementElem.isNull() )
5626 QDomElement vendorOptionElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"VendorOption" ) );
5627 while ( !vendorOptionElem.isNull() && vendorOptionElem.localName() == QLatin1String(
"VendorOption" ) )
5629 QString optionName = vendorOptionElem.attribute( QStringLiteral(
"name" ) );
5630 QString optionValue;
5631 if ( vendorOptionElem.firstChild().nodeType() == QDomNode::TextNode )
5633 optionValue = vendorOptionElem.firstChild().nodeValue();
5637 if ( vendorOptionElem.firstChild().nodeType() == QDomNode::ElementNode &&
5638 vendorOptionElem.firstChild().localName() == QLatin1String(
"Literal" ) )
5641 optionValue = vendorOptionElem.firstChild().firstChild().nodeValue();
5645 QgsDebugError( QStringLiteral(
"unexpected child of %1 named %2" ).arg( vendorOptionElem.localName(), optionName ) );
5649 if ( !optionName.isEmpty() && !optionValue.isEmpty() )
5651 vendorOptions[ optionName ] = optionValue;
5654 vendorOptionElem = vendorOptionElem.nextSiblingElement();
5656 if ( !vendorOptions.isEmpty() )
5658 for ( QgsStringMap::iterator it = vendorOptions.begin(); it != vendorOptions.end(); ++it )
5660 if ( it.key() == QLatin1String(
"underlineText" ) && it.value() == QLatin1String(
"true" ) )
5662 font.setUnderline(
true );
5665 else if ( it.key() == QLatin1String(
"strikethroughText" ) && it.value() == QLatin1String(
"true" ) )
5667 font.setStrikeOut(
true );
5670 else if ( it.key() == QLatin1String(
"maxDisplacement" ) )
5674 else if ( it.key() == QLatin1String(
"followLine" ) && it.value() == QLatin1String(
"true" ) )
5685 else if ( it.key() == QLatin1String(
"maxAngleDelta" ) )
5688 double angle = it.value().toDouble( &ok );
5696 else if ( it.key() == QLatin1String(
"conflictResolution" ) && it.value() == QLatin1String(
"false" ) )
5700 else if ( it.key() == QLatin1String(
"forceLeftToRight" ) && it.value() == QLatin1String(
"false" ) )
5704 else if ( it.key() == QLatin1String(
"group" ) && it.value() == QLatin1String(
"yes" ) )
5708 else if ( it.key() == QLatin1String(
"labelAllGroup" ) && it.value() == QLatin1String(
"true" ) )
5724 return mEditFormConfig;
5735 mEditFormConfig.onRelationsLoaded();
5745 if ( config.isEmpty() )
5781 if ( !mDiagramLayerSettings )
5783 *mDiagramLayerSettings = s;
5791 QString myMetadata = QStringLiteral(
"<html><head></head>\n<body>\n" );
5796 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Information from provider" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5797 myMetadata += QLatin1String(
"<table class=\"list-view\">\n" );
5802 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Storage" ) + QStringLiteral(
"</td><td>" ) +
storageType() + QStringLiteral(
"</td></tr>\n" );
5808 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Comment" ) + QStringLiteral(
"</td><td>" ) +
dataComment() + QStringLiteral(
"</td></tr>\n" );
5814 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Encoding" ) + QStringLiteral(
"</td><td>" ) + provider->encoding() + QStringLiteral(
"</td></tr>\n" );
5815 myMetadata += provider->htmlMetadata();
5830 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Geometry" ) + QStringLiteral(
"</td><td>" ) + typeString + QStringLiteral(
"</td></tr>\n" );
5837 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Extent" ) + QStringLiteral(
"</td><td>" ) + extentAsStr + QStringLiteral(
"</td></tr>\n" );
5841 QLocale locale = QLocale();
5842 locale.setNumberOptions( locale.numberOptions() &= ~QLocale::NumberOption::OmitGroupSeparator );
5843 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
5844 + tr(
"Feature count" ) + QStringLiteral(
"</td><td>" )
5846 + QStringLiteral(
"</td></tr>\n" );
5849 myMetadata += QLatin1String(
"</table>\n<br><br>" );
5858 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Identification" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5859 myMetadata += htmlFormatter.identificationSectionHtml( );
5860 myMetadata += QLatin1String(
"<br><br>\n" );
5863 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Extent" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5864 myMetadata += htmlFormatter.extentSectionHtml(
isSpatial() );
5865 myMetadata += QLatin1String(
"<br><br>\n" );
5868 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Access" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5869 myMetadata += htmlFormatter.accessSectionHtml( );
5870 myMetadata += QLatin1String(
"<br><br>\n" );
5873 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Fields" ) + QStringLiteral(
"</h1>\n<hr>\n<table class=\"list-view\">\n" );
5877 if ( !pkAttrList.isEmpty() )
5879 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Primary key attributes" ) + QStringLiteral(
"</td><td>" );
5880 const auto constPkAttrList = pkAttrList;
5881 for (
int idx : constPkAttrList )
5885 myMetadata += QLatin1String(
"</td></tr>\n" );
5891 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Count" ) + QStringLiteral(
"</td><td>" ) + QString::number( myFields.
size() ) + QStringLiteral(
"</td></tr>\n" );
5893 myMetadata += QLatin1String(
"</table>\n<br><table width=\"100%\" class=\"tabular-view\">\n" );
5894 myMetadata += QLatin1String(
"<tr><th>" ) + tr(
"Field" ) + QLatin1String(
"</th><th>" ) + tr(
"Type" ) + QLatin1String(
"</th><th>" ) + tr(
"Length" ) + QLatin1String(
"</th><th>" ) + tr(
"Precision" ) + QLatin1String(
"</th><th>" ) + tr(
"Comment" ) + QLatin1String(
"</th></tr>\n" );
5896 for (
int i = 0; i < myFields.
size(); ++i )
5901 rowClass = QStringLiteral(
"class=\"odd-row\"" );
5902 myMetadata += QLatin1String(
"<tr " ) + rowClass + QLatin1String(
"><td>" ) + myField.
displayNameWithAlias() + QLatin1String(
"</td><td>" ) + myField.
typeName() + QLatin1String(
"</td><td>" ) + QString::number( myField.
length() ) + QLatin1String(
"</td><td>" ) + QString::number( myField.
precision() ) + QLatin1String(
"</td><td>" ) + myField.
comment() + QLatin1String(
"</td></tr>\n" );
5906 myMetadata += QLatin1String(
"</table>\n<br><br>" );
5909 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Contacts" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5910 myMetadata += htmlFormatter.contactsSectionHtml( );
5911 myMetadata += QLatin1String(
"<br><br>\n" );
5914 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Links" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5915 myMetadata += htmlFormatter.linksSectionHtml( );
5916 myMetadata += QLatin1String(
"<br><br>\n" );
5919 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"History" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5920 myMetadata += htmlFormatter.historySectionHtml( );
5921 myMetadata += QLatin1String(
"<br><br>\n" );
5925 myMetadata += QLatin1String(
"\n</body>\n</html>\n" );
5929void QgsVectorLayer::invalidateSymbolCountedFlag()
5933 mSymbolFeatureCounted =
false;
5936void QgsVectorLayer::onFeatureCounterCompleted()
5941 mFeatureCounter =
nullptr;
5944void QgsVectorLayer::onFeatureCounterTerminated()
5948 mFeatureCounter =
nullptr;
5951void QgsVectorLayer::onJoinedFieldsChanged()
5968void QgsVectorLayer::onFeatureDeleted(
QgsFeatureId fid )
5974 if ( mEditCommandActive || mCommitChangesActive )
5976 mDeletedFids << fid;
5980 mSelectedFeatureIds.remove( fid );
5987void QgsVectorLayer::onRelationsLoaded()
5991 mEditFormConfig.onRelationsLoaded();
5994void QgsVectorLayer::onSymbolsCounted()
5998 if ( mFeatureCounter )
6000 mSymbolFeatureCounted =
true;
6012 return p->relationManager()->referencingRelations(
this, idx );
6021 return mWeakRelations;
6028 mWeakRelations = relations;
6037 QString joinKey = mAuxiliaryLayerKey;
6038 if ( !key.isEmpty() )
6041 if ( storage.
isValid() && !joinKey.isEmpty() )
6066 mAuxiliaryLayerKey.clear();
6068 if ( mAuxiliaryLayer )
6081 mAuxiliaryLayer.reset( alayer );
6082 if ( mAuxiliaryLayer )
6083 mAuxiliaryLayer->setParent(
this );
6091 return mAuxiliaryLayer.get();
6098 return mAuxiliaryLayer.get();
6105 if ( mDataProvider )
6110void QgsVectorLayer::emitDataChanged()
6114 if ( mDataChangedFired )
6121 if (
QgsVectorLayer *layerWeDependUpon = qobject_cast<QgsVectorLayer *>( sender() );
6122 layerWeDependUpon && layerWeDependUpon->mCommitChangesActive )
6127 mDataChangedFired =
true;
6129 mDataChangedFired =
false;
6136 QSet<QgsMapLayerDependency> deps;
6137 const auto constODeps = oDeps;
6144 QSet<QgsMapLayerDependency> toAdd = deps -
dependencies();
6164 if ( mDataProvider )
6188 if ( ! toAdd.isEmpty() )
6198 if ( fieldIndex < 0 || fieldIndex >= mFields.
count() || !mDataProvider )
6216 QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength > m;
6218 if ( fieldIndex < 0 || fieldIndex >= mFields.
count() )
6221 QString
name = mFields.
at( fieldIndex ).
name();
6224 for ( ; conIt != mFieldConstraintStrength.constEnd(); ++conIt )
6226 if ( conIt.key().first ==
name )
6228 m[ conIt.key().second ] = mFieldConstraintStrength.value( conIt.key() );
6239 if ( index < 0 || index >= mFields.
count() )
6246 constraints |= constraint;
6247 mFieldConstraints.insert(
name, constraints );
6249 mFieldConstraintStrength.insert( qMakePair(
name, constraint ), strength );
6258 if ( index < 0 || index >= mFields.
count() )
6265 constraints &= ~constraint;
6266 mFieldConstraints.insert(
name, constraints );
6268 mFieldConstraintStrength.remove( qMakePair(
name, constraint ) );
6277 if ( index < 0 || index >= mFields.
count() )
6287 if ( index < 0 || index >= mFields.
count() )
6297 if ( index < 0 || index >= mFields.
count() )
6300 if ( expression.isEmpty() )
6302 mFieldConstraintExpressions.remove( mFields.
at( index ).
name() );
6306 mFieldConstraintExpressions.insert( mFields.
at( index ).
name(), qMakePair( expression, description ) );
6315 if ( index < 0 || index >= mFields.
count() )
6318 mFieldConfigurationFlags.insert( mFields.
at( index ).
name(),
flags );
6326 if ( index < 0 || index >= mFields.
count() )
6329 flags.setFlag( flag, active );
6337 if ( index < 0 || index >= mFields.
count() )
6347 if ( index < 0 || index >= mFields.
count() )
6351 mFieldWidgetSetups.remove( mFields.
at( index ).
name() );
6353 mFieldWidgetSetups.insert( mFields.
at( index ).
name(), setup );
6361 if ( index < 0 || index >= mFields.
count() )
6372 if (
customProperty( QStringLiteral(
"labeling" ) ).toString() == QLatin1String(
"pal" ) )
6374 if (
customProperty( QStringLiteral(
"labeling/enabled" ), QVariant(
false ) ).toBool() )
6378 settings.readFromLayerCustomProperties(
this );
6385 for (
const QString &key : constCustomPropertyKeys )
6387 if ( key.startsWith( QLatin1String(
"labeling/" ) ) )
6399 return mAllowCommit;
6417 return mGeometryOptions.get();
6431 return mReadExtentFromXml;
6434void QgsVectorLayer::onDirtyTransaction(
const QString &sql,
const QString &name )
6439 if ( tr && mEditBuffer )
6441 qobject_cast<QgsVectorLayerEditPassthrough *>( mEditBuffer )->update( tr, sql,
name );
6447 QList<QgsVectorLayer *> layers;
6448 QMap<QgsVectorLayer *, QgsFeatureIds>::const_iterator i;
6451 if ( includeAuxiliaryLayers || !qobject_cast< QgsAuxiliaryLayer * >( i.key() ) )
6452 layers.append( i.key() );
6459 return mHandledFeatures[layer];
The Qgis class provides global constants for use throughout the application.
@ SelectAtId
Fast access to features using their ID.
@ CreateRenderer
Provider can create feature renderers using backend-specific formatting information....
@ CreateLabeling
Provider can set labeling settings using backend-specific formatting information. Since QGIS 3....
@ ReadLayerMetadata
Provider can read layer metadata from data store. Since QGIS 3.0. See QgsDataProvider::layerMetadata(...
@ DeleteFeatures
Allows deletion of features.
QFlags< VectorRenderingSimplificationFlag > VectorRenderingSimplificationFlags
Simplification flags for vector feature rendering.
@ Composition
Fix relation, related elements are part of the parent and a parent copy will copy any children or del...
@ Association
Loose relation, related elements are not part of the parent and a parent copy will not copy any child...
GeometryOperationResult
Success or failure of a geometry operation.
@ InvalidInputGeometryType
The input geometry (ring, part, split line, etc.) has not the correct geometry type.
@ Success
Operation succeeded.
@ SelectionIsEmpty
No features were selected.
@ AddRingNotInExistingFeature
The input ring doesn't have any existing ring to fit into.
@ AddRingNotClosed
The input ring is not closed.
@ SelectionIsGreaterThanOne
More than one features were selected.
@ LayerNotEditable
Cannot edit layer.
SpatialIndexPresence
Enumeration of spatial index presence states.
@ Unknown
Spatial index presence cannot be determined, index may or may not exist.
VectorRenderingSimplificationFlag
Simplification flags for vector feature rendering.
@ NoSimplification
No simplification can be applied.
@ OverPoint
Arranges candidates over a point (or centroid of a polygon), or at a preset offset from the point....
@ Curved
Arranges candidates following the curvature of a line feature. Applies to line layers only.
@ AroundPoint
Arranges candidates in a circle around a point (or centroid of a polygon). Applies to point or polygo...
@ Line
Arranges candidates parallel to a generalised line representing the feature or parallel to a polygon'...
@ Horizontal
Arranges horizontal candidates scattered throughout a polygon feature. Applies to polygon layers only...
@ PerimeterCurved
Arranges candidates following the curvature of a polygon's boundary. Applies to polygon layers only.
QFlags< VectorLayerTypeFlag > VectorLayerTypeFlags
Vector layer type flags.
VectorSimplificationAlgorithm
Simplification algorithms for vector features.
@ Distance
The simplification uses the distance between points to remove duplicate points.
@ ExactIntersect
Use exact geometry intersection (slower) instead of bounding boxes.
@ SubsetOfAttributes
Fetch only a subset of attributes (setSubsetOfAttributes sets this flag)
@ NoGeometry
Geometry is not required. It may still be returned if e.g. required for a filter condition.
@ FastExtent3D
Provider's 3D extent retrieval via QgsDataProvider::extent3D() is always guaranteed to be trivial/fas...
@ FastExtent2D
Provider's 2D extent retrieval via QgsDataProvider::extent() is always guaranteed to be trivial/fast ...
@ BufferedGroups
Buffered transactional editing means that all editable layers in the buffered transaction group are t...
FieldDomainSplitPolicy
Split policy for field domains.
@ Duplicate
Duplicate original value.
BlendMode
Blending modes defining the available composition modes that can be used when painting.
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
@ Generated
A generated relation is a child of a polymorphic relation.
@ Normal
A normal relation.
FieldDuplicatePolicy
Duplicate policy for fields.
@ Duplicate
Duplicate original value.
static const float DEFAULT_MAPTOPIXEL_THRESHOLD
Default threshold between map coordinates and device coordinates for map2pixel simplification.
QFlags< DataProviderReadFlag > DataProviderReadFlags
Flags which control data provider construction.
FeatureAvailability
Possible return value for QgsFeatureSource::hasFeatures() to determine if a source is empty.
@ FeaturesMaybeAvailable
There may be features available in this source.
@ FeaturesAvailable
There is at least one feature available in this source.
@ NoFeaturesAvailable
There are certainly no features available in this source.
@ Provider
Field originates from the underlying data provider of the vector layer.
@ Edit
Field has been temporarily added in editing mode.
@ Unknown
The field origin has not been specified.
@ Expression
Field is calculated from an expression.
@ Join
Field originates from a joined layer.
RenderUnit
Rendering size units.
@ Points
Points (e.g., for font sizes)
@ LoadDefaultStyle
Reset the layer's style to the default for the datasource.
@ ForceReadOnly
Open layer in a read-only mode.
Aggregate
Available aggregates to calculate.
VertexMarkerType
Editing vertex markers, used for showing vertices during a edit operation.
@ SemiTransparentCircle
Semi-transparent circle marker.
VectorEditResult
Specifies the result of a vector layer edit operation.
@ Success
Edit operation was successful.
@ InvalidLayer
Edit failed due to invalid layer.
WkbType
The WKB type describes the number of dimensions a geometry has.
FieldConfigurationFlag
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
@ HideFromWfs
Field is not available if layer is served as WFS from QGIS server.
@ NoFlag
No flag is defined.
@ HideFromWms
Field is not available if layer is served as WMS from QGIS server.
@ AllowOverlapIfRequired
Avoids overlapping labels when possible, but permit overlaps if labels for features cannot otherwise ...
QFlags< FieldConfigurationFlag > FieldConfigurationFlags
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
@ AlwaysAllowUpsideDown
Show upside down for all labels, including dynamic ones.
SelectBehavior
Specifies how a selection should be applied.
@ SetSelection
Set selection, removing any existing selection.
@ AddToSelection
Add selection to current selection.
@ IntersectSelection
Modify current selection to include only select features which match.
@ RemoveFromSelection
Remove from current selection.
Abstract base class for objects which generate elevation profiles.
virtual bool writeXml(QDomElement &collectionElem, const QgsPropertiesDefinition &definitions) const
Writes the current state of the property collection into an XML element.
Abstract base class - its implementations define different approaches to the labeling of a vector lay...
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the labeling...
virtual void toSld(QDomNode &parent, const QVariantMap &props) const
Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings.
static QgsAbstractVectorLayerLabeling * create(const QDomElement &element, const QgsReadWriteContext &context)
Try to create instance of an implementation based on the XML data.
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context) const =0
Returns labeling configuration as XML element.
Storage and management of actions associated with a layer.
bool writeXml(QDomNode &layer_node) const
Writes the actions out in XML format.
QList< QgsAction > actions(const QString &actionScope=QString()) const
Returns a list of actions that are available in the given action scope.
QUuid addAction(Qgis::AttributeActionType type, const QString &name, const QString &command, bool capture=false)
Add an action with the given name and action details.
bool readXml(const QDomNode &layer_node)
Reads the actions in in XML format.
Utility class that encapsulates an action based on vector attributes.
Utility class for calculating aggregates for a field (or expression) over the features from a vector ...
static QgsRuntimeProfiler * profiler()
Returns the application runtime profiler.
static QgsTaskManager * taskManager()
Returns the application's task manager, used for managing application wide background task handling.
This is a container for configuration of the attribute table.
void readXml(const QDomNode &node)
Deserialize to XML on layer load.
void update(const QgsFields &fields)
Update the configuration with the given fields.
void writeXml(QDomNode &node) const
Serialize to XML on layer save.
Class allowing to manage the auxiliary storage for a vector layer.
QgsVectorLayerJoinInfo joinInfo() const
Returns information to use for joining with primary key and so on.
Class providing some utility methods to manage auxiliary storage.
QgsAuxiliaryLayer * createAuxiliaryLayer(const QgsField &field, QgsVectorLayer *layer) const
Creates an auxiliary layer for a vector layer.
bool isValid() const
Returns the status of the auxiliary storage currently defined.
A 3-dimensional box composed of x, y, z coordinates.
QString toString(int precision=16) const
Returns a string representation of form xmin,ymin,zmin : xmax,ymax,zmax Coordinates will be truncated...
bool isNull() const
Test if the box is null (holding no spatial information).
bool isEmpty() const
Returns true if the box is empty.
The QgsConditionalLayerStyles class holds conditional style information for a layer.
bool readXml(const QDomNode &node, const QgsReadWriteContext &context)
Reads the condition styles state from a DOM node.
bool writeXml(QDomNode &node, QDomDocument &doc, const QgsReadWriteContext &context) const
Writes the condition styles state to a DOM node.
This class represents a coordinate reference system (CRS).
bool isValid() const
Returns whether this CRS is correctly initialized and usable.
Contains information about the context in which a coordinate transform is executed.
Abstract base class for curved geometry type.
virtual bool isClosed() const
Returns true if the curve is closed.
QgsCurve * clone() const override=0
Clones the geometry by performing a deep copy.
virtual bool containsElevationData() const
Returns true if the data provider definitely contains elevation related data.
virtual bool leaveUpdateMode()
Leave update mode.
virtual QString subsetString() const
Returns the subset definition string currently in use by the layer and used by the provider to limit ...
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
virtual Qgis::DataProviderFlags flags() const
Returns the generic data provider flags.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate system for the data source.
void dataChanged()
Emitted whenever a change is made to the data provider which may have caused changes in the provider'...
void fullExtentCalculated()
Emitted whenever a deferred extent calculation is completed by the provider.
virtual Qgis::ProviderStyleStorageCapabilities styleStorageCapabilities() const
Returns the style storage capabilities.
virtual QgsBox3D extent3D() const
Returns the 3D extent of the layer.
virtual QgsLayerMetadata layerMetadata() const
Returns layer metadata collected from the provider's source.
virtual bool isValid() const =0
Returns true if this is a valid layer.
virtual bool setSubsetString(const QString &subset, bool updateFeatureCount=true)
Set the subset string used to create a subset of features in the layer.
virtual QString dataSourceUri(bool expandAuthConfig=false) const
Gets the data source specification.
virtual void updateExtents()
Update the extents of the layer.
virtual void reloadData()
Reloads the data from the source for providers with data caches to synchronize, changes in the data s...
virtual bool enterUpdateMode()
Enter update mode.
virtual QgsRectangle extent() const =0
Returns the extent of the layer.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext)
Sets data coordinate transform context to transformContext.
Class for storing the component parts of a RDBMS data source URI (e.g.
bool useEstimatedMetadata() const
Returns true if estimated metadata should be used for the connection.
The QgsDefaultValue class provides a container for managing client side default values for fields.
bool isValid() const
Returns if this default value should be applied.
Stores the settings for rendering of all diagrams for a layer.
@ PositionX
X-coordinate data defined diagram position.
@ PositionY
Y-coordinate data defined diagram position.
@ Show
Whether to show the diagram.
void readXml(const QDomElement &elem)
Reads the diagram settings from a DOM element.
void writeXml(QDomElement &layerElem, QDomDocument &doc) const
Writes the diagram settings to a DOM element.
Evaluates and returns the diagram settings relating to a diagram for a specific feature.
virtual void writeXml(QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context) const =0
Writes diagram state to a DOM element.
virtual QList< QgsDiagramSettings > diagramSettings() const =0
Returns list with all diagram settings in the renderer.
virtual void readXml(const QDomElement &elem, const QgsReadWriteContext &context)=0
Reads diagram state from a DOM element.
void clear()
Clear error messages.
Single scope for storing variables and functions for use within a QgsExpressionContext.
void setFields(const QgsFields &fields)
Convenience function for setting a fields for the scope.
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the scope.
static QList< QgsExpressionContextScope * > globalProjectLayerScopes(const QgsMapLayer *layer)
Creates a list of three scopes: global, layer's project and layer.
static QgsExpressionContextScope * layerScope(const QgsMapLayer *layer)
Creates a new scope which contains variables and functions relating to a QgsMapLayer.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
QgsExpressionContextScope * popScope()
Removes the last scope from the expression context and return it.
void appendScope(QgsExpressionContextScope *scope)
Appends a scope to the end of the context.
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the context.
Buffers information about expression fields for a vector layer.
void removeExpression(int index)
Remove an expression from the buffer.
void writeXml(QDomNode &layer_node, QDomDocument &document) const
Saves expressions to xml under the layer node.
void readXml(const QDomNode &layer_node)
Reads expressions from project file.
void updateFields(QgsFields &flds) const
Adds fields with the expressions buffered in this object to a QgsFields object.
void addExpression(const QString &exp, const QgsField &fld)
Add an expression to the buffer.
QList< QgsExpressionFieldBuffer::ExpressionField > expressions() const
void updateExpression(int index, const QString &exp)
Changes the expression at a given index.
void renameExpression(int index, const QString &name)
Renames an expression field at a given index.
An expression node which takes it value from a feature's field.
Class for parsing and evaluation of expressions (formerly called "search strings").
bool prepare(const QgsExpressionContext *context)
Gets the expression ready for evaluation - find out column indexes.
QString expression() const
Returns the original, unmodified expression string.
bool hasParserError() const
Returns true if an error occurred when parsing the input expression.
QString evalErrorString() const
Returns evaluation error.
QString parserErrorString() const
Returns parser error.
QSet< QString > referencedColumns() const
Gets list of columns referenced by the expression.
static QString quotedColumnRef(QString name)
Returns a quoted column reference (in double quotes)
bool hasEvalError() const
Returns true if an error occurred when evaluating last input.
static int expressionToLayerFieldIndex(const QString &expression, const QgsVectorLayer *layer)
Attempts to resolve an expression to a field index from the given layer.
bool needsGeometry() const
Returns true if the expression uses feature geometry for some computation.
QVariant evaluate()
Evaluate the feature and return the result.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
bool close()
Call to end the iteration.
An interface for objects which generate feature renderers for vector layers.
Abstract base class for all 2D vector feature renderers.
static QgsFeatureRenderer * defaultRenderer(Qgis::GeometryType geomType)
Returns a new renderer - used by default in vector layers.
virtual void toSld(QDomDocument &doc, QDomElement &element, const QVariantMap &props=QVariantMap()) const
used from subclasses to create SLD Rule elements following SLD v1.1 specs
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context)
Stores renderer properties to an XML element.
double referenceScale() const
Returns the symbology reference scale.
void setReferenceScale(double scale)
Sets the symbology reference scale.
static QgsFeatureRenderer * load(QDomElement &symbologyElem, const QgsReadWriteContext &context)
create a renderer from XML element
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the renderer...
static QgsFeatureRenderer * loadSld(const QDomNode &node, Qgis::GeometryType geomType, QString &errorMessage)
Create a new renderer according to the information contained in the UserStyle element of a SLD style ...
This class wraps a request for features to a vector layer (or directly its vector data provider).
QgsFeatureRequest & setFlags(Qgis::FeatureRequestFlags flags)
Sets flags that affect how features will be fetched.
QgsFeatureRequest & setFilterFids(const QgsFeatureIds &fids)
Sets the feature IDs that should be fetched.
QgsFeatureRequest & setSubsetOfAttributes(const QgsAttributeList &attrs)
Set a subset of attributes that will be fetched.
QgsFeatureRequest & setFilterExpression(const QString &expression)
Set the filter expression.
QgsFeatureRequest & setExpressionContext(const QgsExpressionContext &context)
Sets the expression context used to evaluate filter expressions.
QgsFeatureRequest & setNoAttributes()
Set that no attributes will be fetched.
QgsFeatureRequest & setFilterFid(QgsFeatureId fid)
Sets the feature ID that should be fetched.
virtual bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
Adds a single feature to the sink.
virtual QSet< QVariant > uniqueValues(int fieldIndex, int limit=-1) const
Returns the set of unique values contained within the specified fieldIndex from this source.
virtual Qgis::SpatialIndexPresence hasSpatialIndex() const
Returns an enum value representing the presence of a valid spatial index on the source,...
virtual QgsFeatureIds allFeatureIds() const
Returns a list of all feature IDs for features present in the source.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Q_INVOKABLE bool setAttribute(int field, const QVariant &attr)
Sets an attribute's value by field index.
bool hasGeometry() const
Returns true if the feature has an associated geometry.
bool isValid() const
Returns the validity of this feature.
Q_INVOKABLE QVariant attribute(const QString &name) const
Lookup attribute value by attribute name.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
Base class for feedback objects to be used for cancellation of something running in a worker thread.
bool isCanceled() const
Tells whether the operation has been canceled already.
Stores information about constraints which may be present on a field.
ConstraintStrength
Strength of constraints.
void setConstraintStrength(Constraint constraint, ConstraintStrength strength)
Sets the strength of a constraint.
void setConstraintExpression(const QString &expression, const QString &description=QString())
Set the constraint expression for the field.
@ ConstraintOriginProvider
Constraint was set at data provider.
@ ConstraintOriginLayer
Constraint was set by layer.
ConstraintOrigin constraintOrigin(Constraint constraint) const
Returns the origin of a field constraint, or ConstraintOriginNotSet if the constraint is not present ...
QString constraintExpression() const
Returns the constraint expression for the field, if set.
Constraint
Constraints which may be present on a field.
@ ConstraintNotNull
Field may not be null.
@ ConstraintUnique
Field must have a unique value.
@ ConstraintExpression
Field has an expression constraint set. See constraintExpression().
QString constraintDescription() const
Returns the descriptive name for the constraint expression.
void setConstraint(Constraint constraint, ConstraintOrigin origin=ConstraintOriginLayer)
Sets a constraint on the field.
QFlags< Constraint > Constraints
Encapsulate a field in an attribute table or data source.
QString typeName() const
Gets the field type.
QString displayNameWithAlias() const
Returns the name to use when displaying this field and adds the alias in parenthesis if it is defined...
QString displayName() const
Returns the name to use when displaying this field.
Qgis::FieldConfigurationFlags configurationFlags
QgsDefaultValue defaultValueDefinition
QgsFieldConstraints constraints
QgsEditorWidgetSetup editorWidgetSetup() const
Gets the editor widget setup for the field.
Container of fields for a vector layer.
Q_INVOKABLE int indexFromName(const QString &fieldName) const
Gets the field index from the field name.
Q_INVOKABLE int indexOf(const QString &fieldName) const
Gets the field index from the field name.
Qgis::FieldOrigin fieldOrigin(int fieldIdx) const
Returns the field's origin (value from an enumeration).
int size() const
Returns number of items.
QgsField at(int i) const
Returns the field at particular index (must be in range 0..N-1).
int fieldOriginIndex(int fieldIdx) const
Returns the field's origin index (its meaning is specific to each type of origin).
Q_INVOKABLE int lookupField(const QString &fieldName) const
Looks up field's index from the field name.
The QgsGeometryOptions class contains options to automatically adjust geometries to constraints on a ...
A geometry is the spatial representation of a feature.
QgsBox3D boundingBox3D() const
Returns the 3D bounding box of the geometry.
bool equals(const QgsGeometry &geometry) const
Test if this geometry is exactly equal to another geometry.
QgsRectangle boundingBox() const
Returns the bounding box of the geometry.
void setMergeLines(bool merge)
Sets whether connected line features with identical label text should be merged prior to generating l...
void setOverlapHandling(Qgis::LabelOverlapHandling handling)
Sets the technique used to handle overlapping labels.
Line string geometry type, with support for z-dimension and m-values.
Alters the size of rendered diagrams using a linear scaling.
static void warning(const QString &msg)
Goes to qWarning.
This class models dependencies with or between map layers.
Base class for storage of map layer elevation properties.
static QString typeToString(Qgis::LayerType type)
Converts a map layer type to a string value.
virtual void readXml(const QDomElement &elem, const QgsReadWriteContext &context)
Reads configuration from a DOM element previously written by writeXml()
virtual QDomElement writeXml(QDomDocument &doc, const QgsReadWriteContext &context) const
Writes configuration to a DOM element, to be used later with readXml()
static QgsMapLayerLegend * defaultVectorLegend(QgsVectorLayer *vl)
Create new legend implementation for vector layer.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
Base class for storage of map layer selection properties.
Stores style information (renderer, opacity, labeling, diagrams etc.) applicable to a map layer.
Base class for storage of map layer temporal properties.
Base class for all map layer types.
void readStyleManager(const QDomNode &layerNode)
Read style manager's configuration (if any). To be called by subclasses.
void dependenciesChanged()
Emitted when dependencies are changed.
void writeStyleManager(QDomNode &layerNode, QDomDocument &doc) const
Write style manager's configuration (if exists). To be called by subclasses.
QgsMapLayerLegend * legend() const
Can be nullptr.
void editingStopped()
Emitted when edited changes have been successfully written to the data provider.
void recalculateExtents() const
This is used to send a request that any mapcanvas using this layer update its extents.
virtual QgsRectangle extent() const
Returns the extent of the layer.
QString source() const
Returns the source for the layer.
Q_INVOKABLE QVariant customProperty(const QString &value, const QVariant &defaultValue=QVariant()) const
Read a custom property from layer.
int mBlockStyleChangedSignal
If non-zero, the styleChanged signal should not be emitted.
QString providerType() const
Returns the provider type (provider key) for this layer.
virtual void setExtent3D(const QgsBox3D &box)
Sets the extent.
void removeCustomProperty(const QString &key)
Remove a custom property from layer.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
void configChanged()
Emitted whenever the configuration is changed.
void setMinimumScale(double scale)
Sets the minimum map scale (i.e.
static Qgis::DataProviderReadFlags providerReadFlags(const QDomNode &layerNode, QgsMapLayer::ReadFlags layerReadFlags)
Returns provider read flag deduced from layer read flags layerReadFlags and a dom node layerNode that...
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
void editingStarted()
Emitted when editing on this layer has started.
QgsCoordinateReferenceSystem crs
friend class QgsVectorLayer
void writeCustomProperties(QDomNode &layerNode, QDomDocument &doc) const
Write custom properties to project file.
virtual int listStylesInDatabase(QStringList &ids, QStringList &names, QStringList &descriptions, QString &msgError)
Lists all the style in db split into related to the layer and not related to.
virtual QString loadDefaultStyle(bool &resultFlag)
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
void setDataSource(const QString &dataSource, const QString &baseName=QString(), const QString &provider=QString(), bool loadDefaultStyleFlag=false)
Updates the data source of the layer.
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
void setMaximumScale(double scale)
Sets the maximum map scale (i.e.
QgsLayerMetadata metadata
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
virtual void setOpacity(double opacity)
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
void setFlags(QgsMapLayer::LayerFlags flags)
Returns the flags for this layer.
QString publicSource(bool hidePassword=false) const
Gets a version of the internal layer definition that has sensitive bits removed (for example,...
QSet< QgsMapLayerDependency > mDependencies
List of layers that may modify this layer on modification.
void readCustomProperties(const QDomNode &layerNode, const QString &keyStartsWith=QString())
Read custom properties from project file.
virtual void setMetadata(const QgsLayerMetadata &metadata)
Sets the layer's metadata store.
QFlags< StyleCategory > StyleCategories
Q_INVOKABLE void setCustomProperty(const QString &key, const QVariant &value)
Set a custom property for layer.
QString mProviderKey
Data provider key (name of the data provider)
QgsCoordinateTransformContext transformContext() const
Returns the layer data provider coordinate transform context or a default transform context if the la...
void styleChanged()
Signal emitted whenever a change affects the layer's style.
QUndoStack * undoStack()
Returns pointer to layer's undo stack.
std::unique_ptr< QgsDataProvider > mPreloadedProvider
Optionally used when loading a project, it is released when the layer is effectively created.
void rendererChanged()
Signal emitted when renderer is changed.
virtual QgsError error() const
Gets current status error.
void setScaleBasedVisibility(bool enabled)
Sets whether scale based visibility is enabled for the layer.
void dataSourceChanged()
Emitted whenever the layer's data source has been changed.
bool hasScaleBasedVisibility() const
Returns whether scale based visibility is enabled for the layer.
virtual QString getStyleFromDatabase(const QString &styleId, QString &msgError)
Returns the named style corresponding to style id provided.
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
void dataChanged()
Data of layer changed.
void willBeDeleted()
Emitted in the destructor when the layer is about to be deleted, but it is still in a perfectly valid...
virtual QgsBox3D extent3D() const
Returns the 3D extent of the layer.
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
void setName(const QString &name)
Set the display name of the layer.
virtual void setExtent(const QgsRectangle &rect)
Sets the extent.
virtual void resolveReferences(QgsProject *project)
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
QString mDataSource
Data source description string, varies by layer type.
void setMapTipsEnabled(bool enabled)
Enable or disable map tips for this layer.
@ FlagReadExtentFromXml
Read extent from xml and skip get extent from provider.
@ FlagForceReadOnly
Force open as read only.
@ FlagDontResolveLayers
Don't resolve layer paths or create data providers for layers.
void setValid(bool valid)
Sets whether layer is valid or not.
void readCommonStyle(const QDomElement &layerElement, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)
Read style data common to all layer types.
QgsMapLayer::ReadFlags mReadFlags
Read flags. It's up to the subclass to respect these when restoring state from XML.
double minimumScale() const
Returns the minimum map scale (i.e.
void repaintRequested(bool deferredUpdate=false)
By emitting this signal the layer tells that either appearance or content have been changed and any v...
void setMapTipTemplate(const QString &mapTipTemplate)
The mapTip is a pretty, html representation for feature information.
Q_INVOKABLE QStringList customPropertyKeys() const
Returns list of all keys within custom properties.
QgsProject * project() const
Returns the parent project if this map layer is added to a project.
void setLegend(QgsMapLayerLegend *legend)
Assign a legend controller to the map layer.
bool mValid
Indicates if the layer is valid and can be drawn.
@ GeometryOptions
Geometry validation configuration.
@ AttributeTable
Attribute table settings: choice and order of columns, conditional styling.
@ LayerConfiguration
General configuration: identifiable, removable, searchable, display expression, read-only.
@ Rendering
Rendering: scale visibility, simplify method, opacity.
@ CustomProperties
Custom properties (by plugins for instance)
@ Fields
Aliases, widgets, WMS/WFS, expressions, constraints, virtual fields.
void layerModified()
Emitted when modifications has been done on layer.
void setProviderType(const QString &providerType)
Sets the providerType (provider key)
QString customPropertyHtmlMetadata() const
Returns an HTML fragment containing custom property information, for use in the htmlMetadata() method...
QString generalHtmlMetadata() const
Returns an HTML fragment containing general metadata information, for use in the htmlMetadata() metho...
void writeCommonStyle(QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const
Write style data common to all layer types.
double maximumScale() const
Returns the maximum map scale (i.e.
bool mShouldValidateCrs
true if the layer's CRS should be validated and invalid CRSes are not permitted.
void setCrs(const QgsCoordinateReferenceSystem &srs, bool emitSignal=true)
Sets layer's spatial reference system.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true, const char *file=__builtin_FILE(), const char *function=__builtin_FUNCTION(), int line=__builtin_LINE())
Adds a message to the log instance (and creates it if necessary).
static QgsExpression * expressionFromOgcFilter(const QDomElement &element, QgsVectorLayer *layer=nullptr)
Parse XML with OGC filter into QGIS expression.
static Qgis::BlendMode getBlendModeEnum(QPainter::CompositionMode blendMode)
Returns a Qgis::BlendMode corresponding to a QPainter::CompositionMode.
static QPainter::CompositionMode getCompositionMode(Qgis::BlendMode blendMode)
Returns a QPainter::CompositionMode corresponding to a Qgis::BlendMode.
Contains settings for how a map layer will be labeled.
double yOffset
Vertical offset of label.
const QgsLabelPlacementSettings & placementSettings() const
Returns the label placement settings.
double maxCurvedCharAngleIn
Maximum angle between inside curved label characters (valid range 20.0 to 60.0).
void setFormat(const QgsTextFormat &format)
Sets the label text formatting settings, e.g., font settings, buffer settings, etc.
double xOffset
Horizontal offset of label.
Qgis::LabelPlacement placement
Label placement mode.
double angleOffset
Label rotation, in degrees clockwise.
double maxCurvedCharAngleOut
Maximum angle between outside curved label characters (valid range -20.0 to -95.0)
Qgis::RenderUnit offsetUnits
Units for offsets of label.
bool isExpression
true if this label is made from a expression string, e.g., FieldName || 'mm'
const QgsLabelLineSettings & lineSettings() const
Returns the label line settings, which contain settings related to how the label engine places and fo...
Qgis::UpsideDownLabelHandling upsidedownLabels
Controls whether upside down labels are displayed and how they are handled.
QString fieldName
Name of field (or an expression) to use for label text.
A class to represent a 2D point.
Point geometry type, with support for z-dimension and m-values.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
virtual QString translate(const QString &context, const QString &sourceText, const char *disambiguation=nullptr, int n=-1) const =0
Translates a string using the Qt QTranslator mechanism.
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
QgsRelationManager * relationManager
bool commitChanges(QStringList &commitErrors, bool stopEditing=true, QgsVectorLayer *vectorLayer=nullptr)
Attempts to commit to the underlying data provider any buffered changes made since the last to call t...
static QgsProject * instance()
Returns the QgsProject singleton instance.
bool rollBack(QStringList &rollbackErrors, bool stopEditing=true, QgsVectorLayer *vectorLayer=nullptr)
Stops a current editing operation on vectorLayer and discards any uncommitted edits.
bool startEditing(QgsVectorLayer *vectorLayer=nullptr)
Makes the layer editable.
QMap< QString, QgsMapLayer * > mapLayers(const bool validOnly=false) const
Returns a map of all registered layers by layer ID.
A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
void setProperty(int key, const QgsProperty &property)
Adds a property to the collection and takes ownership of it.
Definition for a property.
@ Double
Double value (including negative values)
static QgsProperty fromField(const QString &fieldName, bool isActive=true)
Returns a new FieldBasedProperty created from the specified field name.
QString absoluteToRelativeUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts absolute path(s) to relative path(s) in the given provider-specific URI.
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
QString relativeToAbsoluteUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts relative path(s) to absolute path(s) in the given provider-specific URI.
Allows entering a context category and takes care of leaving this category on deletion of the class.
The class is used as a container of context for various read/write operations on other objects.
MAYBE_UNUSED NODISCARD QgsReadWriteContextCategoryPopper enterCategory(const QString &category, const QString &details=QString()) const
Push a category to the stack.
const QgsProjectTranslator * projectTranslator() const
Returns the project translator.
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
A rectangle specified with double values.
Q_INVOKABLE QString toString(int precision=16) const
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the sp...
void set(const QgsPointXY &p1, const QgsPointXY &p2, bool normalize=true)
Sets the rectangle from two QgsPoints.
void combineExtentWith(const QgsRectangle &rect)
Expands the rectangle so that it covers both the original rectangle and the given rectangle.
void normalize()
Normalize the rectangle so it has non-negative width/height.
void setNull()
Mark a rectangle as being null (holding no spatial information).
QList< QgsRelation > referencedRelations(const QgsVectorLayer *layer=nullptr) const
Gets all relations where this layer is the referenced part (i.e.
void relationsLoaded()
Emitted when the relations were loaded after reading a project.
Represents a relationship between two vector layers.
Contains information about the context of a rendering operation.
double rendererScale() const
Returns the renderer map scale.
bool useRenderingOptimization() const
Returns true if the rendering optimization (geometry simplification) can be executed.
A child rule for QgsRuleBasedLabeling.
void appendChild(QgsRuleBasedLabeling::Rule *rule)
add child rule, take ownership, sets this as parent
Rule based labeling for a vector layer.
A boolean settings entry.
A template class for enum and flag settings entry.
static QgsSettingsTreeNode * sTreeQgis
This class is a composition of two QSettings instances:
Renders the diagrams for all features with the same settings.
Renders diagrams using mixed diagram render types.
Manages stored expressions regarding creation, modification and storing in the project.
bool writeXml(QDomNode &layerNode) const
Writes the stored expressions out in XML format.
bool readXml(const QDomNode &layerNode)
Reads the stored expressions in in XML format.
An interface for classes which can visit style entity (e.g.
static double rendererFrameRate(const QgsFeatureRenderer *renderer)
Calculates the frame rate (in frames per second) at which the given renderer must be redrawn.
static QgsStringMap getSvgParameterList(QDomElement &element)
static void mergeScaleDependencies(double mScaleMinDenom, double mScaleMaxDenom, QVariantMap &props)
Merges the local scale limits, if any, with the ones already in the map, if any.
static bool fillFromSld(QDomElement &element, Qt::BrushStyle &brushStyle, QColor &color)
static Qgis::RenderUnit decodeSldUom(const QString &str, double *scaleFactor=nullptr)
Decodes a SLD unit of measure string to a render unit.
long addTask(QgsTask *task, int priority=0)
Adds a task to the manager.
void taskCompleted()
Will be emitted by task to indicate its successful completion.
void taskTerminated()
Will be emitted by task if it has terminated for any reason other then completion (e....
bool isActive() const
Returns true if the temporal property is active.
Container for settings relating to a text buffer.
void setColor(const QColor &color)
Sets the color for the buffer.
void setSizeUnit(Qgis::RenderUnit unit)
Sets the units used for the buffer size.
void setEnabled(bool enabled)
Sets whether the text buffer will be drawn.
void setSize(double size)
Sets the size of the buffer.
Container for all settings relating to text rendering.
void setColor(const QColor &color)
Sets the color that text will be rendered in.
void setSize(double size)
Sets the size for rendered text.
void setFont(const QFont &font)
Sets the font used for rendering text.
void setSizeUnit(Qgis::RenderUnit unit)
Sets the units for the size of rendered text.
void setBuffer(const QgsTextBufferSettings &bufferSettings)
Sets the text's buffer settings.
This class allows including a set of layers in a database-side transaction, provided the layer data p...
QString createSavepoint(QString &error)
creates a save point returns empty string on error returns the last created savepoint if it's not dir...
void dirtied(const QString &sql, const QString &name)
Emitted if a sql query is executed and the underlying data is modified.
static bool isNull(const QVariant &variant, bool silenceNullWarnings=false)
Returns true if the specified variant should be considered a NULL value.
This is the base class for vector data providers.
virtual QString dataComment() const override
Returns a short comment for the data that this provider is providing access to (e....
virtual QVariant aggregate(Qgis::Aggregate aggregate, int index, const QgsAggregateCalculator::AggregateParameters ¶meters, QgsExpressionContext *context, bool &ok, QgsFeatureIds *fids=nullptr) const
Calculates an aggregated value from the layer's features.
static const int EditingCapabilities
Bitmask of all provider's editing capabilities.
long long featureCount() const override=0
Number of features in the layer.
virtual QgsFeatureRenderer * createRenderer(const QVariantMap &configuration=QVariantMap()) const
Creates a new vector layer feature renderer, using provider backend specific information.
virtual QString storageType() const
Returns the permanent storage type for this layer as a friendly name.
virtual QStringList uniqueStringsMatching(int index, const QString &substring, int limit=-1, QgsFeedback *feedback=nullptr) const
Returns unique string values of an attribute which contain a specified subset string.
void raiseError(const QString &msg) const
Signals an error in this provider.
virtual bool isSqlQuery() const
Returns true if the layer is a query (SQL) layer.
virtual bool empty() const
Returns true if the layer does not contain any feature.
virtual Q_INVOKABLE Qgis::VectorProviderCapabilities capabilities() const
Returns flags containing the supported capabilities.
virtual QgsAttributeList pkAttributeIndexes() const
Returns list of indexes of fields that make up the primary key.
virtual void handlePostCloneOperations(QgsVectorDataProvider *source)
Handles any post-clone operations required after this vector data provider was cloned from the source...
virtual QSet< QgsMapLayerDependency > dependencies() const
Gets the list of layer ids on which this layer depends.
virtual void setEncoding(const QString &e)
Set encoding used for accessing data from layer.
virtual Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const
Returns the vector layer type flags.
QVariant maximumValue(int index) const override
Returns the maximum value of an attribute.
QgsDataProviderElevationProperties * elevationProperties() override
Returns the provider's elevation properties.
QgsFields fields() const override=0
Returns the fields associated with this data provider.
Qgis::WkbType wkbType() const override=0
Returns the geometry type which is returned by this layer.
QVariant minimumValue(int index) const override
Returns the minimum value of an attribute.
QString encoding() const
Returns the encoding which is used for accessing data.
virtual QVariant defaultValue(int fieldIndex) const
Returns any literal default values which are present at the provider for a specified field index.
QgsFieldConstraints::Constraints fieldConstraints(int fieldIndex) const
Returns any constraints which are present at the provider for a specified field index.
virtual QgsTransaction * transaction() const
Returns the transaction this data provider is included in, if any.
virtual QgsAbstractVectorLayerLabeling * createLabeling(const QVariantMap &configuration=QVariantMap()) const
Creates labeling settings, using provider backend specific information.
QgsVectorDataProviderTemporalCapabilities * temporalCapabilities() override
Returns the provider's temporal capabilities.
QString capabilitiesString() const
Returns the above in friendly format.
bool commitChanges(QStringList &commitErrors, bool stopEditing=true)
Attempts to commit any changes to disk.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Emitted after attribute deletion has been committed to the layer.
virtual bool deleteFeature(QgsFeatureId fid)
Delete a feature from the layer (but does not commit it)
QgsFeatureIds deletedFeatureIds() const
Returns a list of deleted feature IDs which are not committed.
QgsChangedAttributesMap changedAttributeValues() const
Returns a map of features with changed attributes values which are not committed.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
Emitted after feature attribute value changes have been committed to the layer.
virtual bool renameAttribute(int attr, const QString &newName)
Renames an attribute field (but does not commit it)
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geom)
Emitted when a feature's geometry is changed.
virtual bool deleteFeatures(const QgsFeatureIds &fid)
Deletes a set of features from the layer (but does not commit it)
virtual bool addAttribute(const QgsField &field)
Adds an attribute field (but does not commit it) returns true if the field was added.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
Emitted after attribute addition has been committed to the layer.
virtual bool addFeatures(QgsFeatureList &features)
Insert a copy of the given features into the layer (but does not commit it)
virtual bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues)
Changes values of attributes (but does not commit it).
QgsFeatureMap addedFeatures() const
Returns a map of new features which are not committed.
virtual bool isModified() const
Returns true if the provider has been modified since the last commit.
void updateFields(QgsFields &fields)
Updates fields.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
Emitted after feature addition has been committed to the layer.
void featureDeleted(QgsFeatureId fid)
Emitted when a feature was deleted from the buffer.
QgsGeometryMap changedGeometries() const
Returns a map of features with changed geometries which are not committed.
QgsVectorLayerEditBufferGroup * editBufferGroup() const
Returns the parent edit buffer group for this edit buffer, or nullptr if not part of a group.
QgsAttributeList deletedAttributeIds() const
Returns a list of deleted attributes fields which are not committed.
void attributeAdded(int idx)
Emitted when an attribute was added to the buffer.
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
Emitted after feature geometry changes have been committed to the layer.
virtual bool addFeature(QgsFeature &f)
Adds a feature.
virtual void rollBack()
Stop editing and discard the edits.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted when a feature's attribute value has been changed.
void attributeDeleted(int idx)
Emitted when an attribute was deleted from the buffer.
void featureAdded(QgsFeatureId fid)
Emitted when a feature has been added to the buffer.
virtual bool commitChanges(QStringList &commitErrors)
Attempts to commit any changes to disk.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it)
virtual bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changed an attribute value (but does not commit it)
virtual bool changeGeometry(QgsFeatureId fid, const QgsGeometry &geom)
Change feature's geometry.
void layerModified()
Emitted when modifications has been done on layer.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
Emitted after feature removal has been committed to the layer.
Contains utility functions for editing vector layers.
int translateFeature(QgsFeatureId featureId, double dx, double dy)
Translates feature by dx, dy.
bool insertVertex(double x, double y, QgsFeatureId atFeatureId, int beforeVertex)
Insert a new vertex before the given vertex number, in the given ring, item (first number is index 0)...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addPart(const QVector< QgsPointXY > &ring, QgsFeatureId featureId)
Adds a new part polygon to a multipart feature.
Qgis::VectorEditResult deleteVertex(QgsFeatureId featureId, int vertex)
Deletes a vertex from a feature.
int addTopologicalPoints(const QgsGeometry &geom)
Adds topological points for every vertex of the geometry.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitParts(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits parts cut by the given line.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitFeatures(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits features cut by the given line.
bool moveVertex(double x, double y, QgsFeatureId atFeatureId, int atVertex)
Moves the vertex at the given position number, ring and item (first number is index 0),...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring, const QgsFeatureIds &targetFeatureIds=QgsFeatureIds(), QgsFeatureId *modifiedFeatureId=nullptr)
Adds a ring to polygon/multipolygon features.
Vector layer specific subclass of QgsMapLayerElevationProperties.
void setDefaultsFromLayer(QgsMapLayer *layer) override
Sets default properties based on sensible choices for the given map layer.
QgsVectorLayerElevationProperties * clone() const override
Creates a clone of the properties.
Counts the features in a QgsVectorLayer in task.
QHash< QString, long long > symbolFeatureCountMap() const
Returns the count for each symbol.
void cancel() override
Notifies the task that it should terminate.
QHash< QString, QgsFeatureIds > symbolFeatureIdMap() const
Returns the QgsFeatureIds for each symbol.
A feature iterator which iterates over features from a QgsVectorLayer.
Manages joined fields for a vector layer.
void resolveReferences(QgsProject *project)
Resolves layer IDs of joined layers using given project's available layers.
bool addJoin(const QgsVectorLayerJoinInfo &joinInfo)
Joins another vector layer to this layer.
void readXml(const QDomNode &layer_node)
Reads joins from project file.
void writeXml(QDomNode &layer_node, QDomDocument &document) const
Saves mVectorJoins to xml under the layer node.
const QgsVectorLayerJoinInfo * joinForFieldIndex(int index, const QgsFields &fields, int &sourceFieldIndex) const
Finds the vector join for a layer field index.
bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changes attribute value in joined layers.
bool removeJoin(const QString &joinLayerId)
Removes a vector layer join.
bool containsJoins() const
Quick way to test if there is any join at all.
bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues=QgsAttributeMap())
Changes attributes' values in joined layers.
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds a list of features in joined layers.
void joinedFieldsChanged()
Emitted whenever the list of joined fields changes (e.g.
void updateFields(QgsFields &fields)
Updates field map with joined attributes.
bool deleteFeature(QgsFeatureId fid, QgsVectorLayer::DeleteContext *context=nullptr) const
Deletes a feature from joined layers.
const QgsVectorJoinList & vectorJoins() const
Defines left outer join from our vector layer to some other vector layer.
QString targetFieldName() const
Returns name of the field of our layer that will be used for join.
QString joinLayerId() const
ID of the joined layer - may be used to resolve reference to the joined layer.
Implementation of QgsAbstractProfileGenerator for vector layers.
Implementation of threaded rendering for vector layers.
Implementation of layer selection properties for vector layers.
QgsVectorLayerSelectionProperties * clone() const override
Creates a clone of the properties.
QDomElement writeXml(QDomElement &element, QDomDocument &doc, const QgsReadWriteContext &context) override
Writes the properties to a DOM element, to be used later with readXml().
bool readXml(const QDomElement &element, const QgsReadWriteContext &context) override
Reads temporal properties from a DOM element previously written by writeXml().
Basic implementation of the labeling interface.
Implementation of map layer temporal properties for vector layers.
void guessDefaultsFromFields(const QgsFields &fields)
Attempts to setup the temporal properties by scanning a set of fields and looking for standard naming...
void setDefaultsFromDataProviderTemporalCapabilities(const QgsDataProviderTemporalCapabilities *capabilities) override
Sets the layers temporal settings to appropriate defaults based on a provider's temporal capabilities...
Contains settings which reflect the context in which vector layer tool operations should consider.
QgsExpressionContext * expressionContext() const
Returns the optional expression context used by the vector layer tools.
static QString guessFriendlyIdentifierField(const QgsFields &fields, bool *foundFriendly=nullptr)
Given a set of fields, attempts to pick the "most useful" field for user-friendly identification of f...
Represents a vector layer which manages a vector based data sets.
void setLabeling(QgsAbstractVectorLayerLabeling *labeling)
Sets labeling configuration.
QString attributeDisplayName(int index) const
Convenience function that returns the attribute alias if defined or the field name else.
QVariant maximumValue(int index) const FINAL
Returns the maximum value for an attribute column or an invalid variant in case of error.
int addExpressionField(const QString &exp, const QgsField &fld)
Add a new field which is calculated by the expression specified.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
Emitted when features are added to the provider if not in transaction mode.
void setExtent(const QgsRectangle &rect) FINAL
Sets the extent.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addPart(const QList< QgsPointXY > &ring)
Adds a new part polygon to a multipart feature.
static const QgsSettingsEntryEnumFlag< Qgis::VectorRenderingSimplificationFlags > * settingsSimplifyDrawingHints
QgsRectangle sourceExtent() const FINAL
Returns the extent of all geometries from the source.
void featureBlendModeChanged(QPainter::CompositionMode blendMode)
Signal emitted when setFeatureBlendMode() is called.
bool labelsEnabled() const
Returns whether the layer contains labels which are enabled and should be drawn.
bool writeSymbology(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const FINAL
Write the style for the layer into the document provided.
bool isModified() const override
Returns true if the provider has been modified since the last commit.
bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const FINAL
Write just the symbology information for the layer into the document.
void addFeatureRendererGenerator(QgsFeatureRendererGenerator *generator)
Adds a new feature renderer generator to the layer.
Q_DECL_DEPRECATED void setExcludeAttributesWfs(const QSet< QString > &att)
A set of attributes that are not advertised in WFS requests with QGIS server.
Q_INVOKABLE bool deleteSelectedFeatures(int *deletedCount=nullptr, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes the selected features.
Q_INVOKABLE void selectByRect(QgsRectangle &rect, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection)
Selects features found within the search rectangle (in layer's coordinates)
void removeFieldAlias(int index)
Removes an alias (a display name) for attributes to display in dialogs.
void setAuxiliaryLayer(QgsAuxiliaryLayer *layer=nullptr)
Sets the current auxiliary layer.
void beforeRemovingExpressionField(int idx)
Will be emitted, when an expression field is going to be deleted from this vector layer.
Q_INVOKABLE bool deleteFeatures(const QgsFeatureIds &fids, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes a set of features from the layer (but does not commit it)
QString loadDefaultStyle(bool &resultFlag) FINAL
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
Emitted when geometry changes are saved to the provider if not in transaction mode.
void beforeCommitChanges(bool stopEditing)
Emitted before changes are committed to the data provider.
Q_INVOKABLE bool startEditing()
Makes the layer editable.
void setFieldConfigurationFlags(int index, Qgis::FieldConfigurationFlags flags)
Sets the configuration flags of the field at given index.
QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength > fieldConstraintsAndStrength(int fieldIndex) const
Returns a map of constraint with their strength for a specific field of the layer.
bool addJoin(const QgsVectorLayerJoinInfo &joinInfo)
Joins another vector layer to this layer.
QSet< QgsMapLayerDependency > dependencies() const FINAL
Gets the list of dependencies.
QgsMapLayerTemporalProperties * temporalProperties() override
Returns the layer's temporal properties.
Q_INVOKABLE bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant(), bool skipDefaultValues=false, QgsVectorLayerToolsContext *context=nullptr)
Changes an attribute value for a feature (but does not immediately commit the changes).
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitFeatures(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits features cut by the given line.
QgsDefaultValue defaultValueDefinition(int index) const
Returns the definition of the expression used when calculating the default value for a field.
QgsExpressionContextScope * createExpressionContextScope() const FINAL
This method needs to be reimplemented in all classes which implement this interface and return an exp...
QgsMapLayerRenderer * createMapRenderer(QgsRenderContext &rendererContext) FINAL
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
QgsVectorLayerFeatureCounter * countSymbolFeatures(bool storeSymbolFids=false)
Count features for symbols.
QPainter::CompositionMode featureBlendMode() const
Returns the current blending mode for features.
bool hasMapTips() const FINAL
Returns true if the layer contains map tips.
QString constraintExpression(int index) const
Returns the constraint expression for for a specified field index, if set.
bool addAttribute(const QgsField &field)
Add an attribute field (but does not commit it) returns true if the field was added.
void attributeAdded(int idx)
Will be emitted, when a new attribute has been added to this vector layer.
QString capabilitiesString() const
Capabilities for this layer, comma separated and translated.
void deselect(QgsFeatureId featureId)
Deselects feature by its ID.
void allowCommitChanged()
Emitted whenever the allowCommit() property of this layer changes.
friend class QgsVectorLayerEditBuffer
void editCommandStarted(const QString &text)
Signal emitted when a new edit command has been started.
void updateFields()
Will regenerate the fields property of this layer by obtaining all fields from the dataProvider,...
bool isSpatial() const FINAL
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeome...
const QgsDiagramLayerSettings * diagramLayerSettings() const
void setFieldConstraint(int index, QgsFieldConstraints::Constraint constraint, QgsFieldConstraints::ConstraintStrength strength=QgsFieldConstraints::ConstraintStrengthHard)
Sets a constraint for a specified field index.
bool loadAuxiliaryLayer(const QgsAuxiliaryStorage &storage, const QString &key=QString())
Loads the auxiliary layer for this vector layer.
bool insertVertex(double x, double y, QgsFeatureId atFeatureId, int beforeVertex)
Inserts a new vertex before the given vertex number, in the given ring, item (first number is index 0...
QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const FINAL
Queries the layer for features specified in request.
QgsAbstractProfileGenerator * createProfileGenerator(const QgsProfileRequest &request) override
Given a profile request, returns a new profile generator ready for generating elevation profiles.
QString htmlMetadata() const FINAL
Obtain a formatted HTML string containing assorted metadata for this layer.
Q_INVOKABLE QgsRectangle boundingBoxOfSelected() const
Returns the bounding box of the selected features. If there is no selection, QgsRectangle(0,...
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a list of features to the sink.
Q_INVOKABLE QgsFeatureList selectedFeatures() const
Returns a copy of the user-selected features.
QString expressionField(int index) const
Returns the expression used for a given expression field.
bool readSymbology(const QDomNode &layerNode, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) FINAL
Read the symbology for the current layer from the DOM node supplied.
void removeFeatureRendererGenerator(const QString &id)
Removes the feature renderer with matching id from the layer.
Q_INVOKABLE bool deleteFeature(QgsFeatureId fid, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes a feature from the layer (but does not commit it).
friend class QgsVectorLayerEditPassthrough
void setSimplifyMethod(const QgsVectorSimplifyMethod &simplifyMethod)
Sets the simplification settings for fast rendering of features.
void editCommandDestroyed()
Signal emitted, when an edit command is destroyed.
QVariant aggregate(Qgis::Aggregate aggregate, const QString &fieldOrExpression, const QgsAggregateCalculator::AggregateParameters ¶meters=QgsAggregateCalculator::AggregateParameters(), QgsExpressionContext *context=nullptr, bool *ok=nullptr, QgsFeatureIds *fids=nullptr, QgsFeedback *feedback=nullptr, QString *error=nullptr) const
Calculates an aggregated value from the layer's features.
QgsFieldConstraints::Constraints fieldConstraints(int fieldIndex) const
Returns any constraints which are present for a specified field index.
static const QgsSettingsEntryEnumFlag< Qgis::VectorSimplificationAlgorithm > * settingsSimplifyAlgorithm
Q_DECL_DEPRECATED QSet< QString > excludeAttributesWms() const
A set of attributes that are not advertised in WMS requests with QGIS server.
QgsBox3D sourceExtent3D() const FINAL
Returns the 3D extent of all geometries from the source.
QgsFeatureIds symbolFeatureIds(const QString &legendKey) const
Ids of features rendered with specified legend key.
void removeFieldConstraint(int index, QgsFieldConstraints::Constraint constraint)
Removes a constraint for a specified field index.
int selectedFeatureCount() const
Returns the number of features that are selected in this layer.
void featuresDeleted(const QgsFeatureIds &fids)
Emitted when features have been deleted.
Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const
Returns the vector layer type flags.
void setLabelsEnabled(bool enabled)
Sets whether labels should be enabled for the layer.
void subsetStringChanged()
Emitted when the layer's subset string has changed.
QgsAuxiliaryLayer * auxiliaryLayer()
Returns the current auxiliary layer.
void setCoordinateSystem()
Setup the coordinate system transformation for the layer.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
Emitted when features are deleted from the provider if not in transaction mode.
void updateExpressionField(int index, const QString &exp)
Changes the expression used to define an expression based (virtual) field.
Q_INVOKABLE void selectByExpression(const QString &expression, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection, QgsExpressionContext *context=nullptr)
Selects matching features using an expression.
static const QgsSettingsEntryDouble * settingsSimplifyMaxScale
~QgsVectorLayer() override
QgsCoordinateReferenceSystem sourceCrs() const FINAL
Returns the coordinate reference system for features in the source.
void endEditCommand()
Finish edit command and add it to undo/redo stack.
void destroyEditCommand()
Destroy active command and reverts all changes in it.
bool isAuxiliaryField(int index, int &srcIndex) const
Returns true if the field comes from the auxiliary layer, false otherwise.
QgsExpressionContext createExpressionContext() const FINAL
This method needs to be reimplemented in all classes which implement this interface and return an exp...
QList< QgsRelation > referencingRelations(int idx) const
Returns the layer's relations, where the foreign key is on this layer.
Q_DECL_DEPRECATED QSet< QString > excludeAttributesWfs() const
A set of attributes that are not advertised in WFS requests with QGIS server.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitParts(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits parts cut by the given line.
void setDefaultValueDefinition(int index, const QgsDefaultValue &definition)
Sets the definition of the expression to use when calculating the default value for a field.
bool diagramsEnabled() const
Returns whether the layer contains diagrams which are enabled and should be drawn.
void setAllowCommit(bool allowCommit)
Controls, if the layer is allowed to commit changes.
bool setDependencies(const QSet< QgsMapLayerDependency > &layers) FINAL
Sets the list of dependencies.
void symbolFeatureCountMapChanged()
Emitted when the feature count for symbols on this layer has been recalculated.
Q_INVOKABLE const QgsFeatureIds & selectedFeatureIds() const
Returns a list of the selected features IDs in this layer.
Qgis::VectorEditResult deleteVertex(QgsFeatureId featureId, int vertex)
Deletes a vertex from a feature.
void setFeatureBlendMode(QPainter::CompositionMode blendMode)
Sets the blending mode used for rendering each feature.
QString constraintDescription(int index) const
Returns the descriptive name for the constraint expression for a specified field index.
void writeCustomSymbology(QDomElement &element, QDomDocument &doc, QString &errorMessage) const
Signal emitted whenever the symbology (QML-file) for this layer is being written.
const QgsAbstractVectorLayerLabeling * labeling() const
Access to const labeling configuration.
void setProviderEncoding(const QString &encoding)
Sets the text encoding of the data provider.
bool writeSld(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props=QVariantMap()) const
Writes the symbology of the layer into the document provided in SLD 1.1 format.
void setDisplayExpression(const QString &displayExpression)
Set the preview expression, used to create a human readable preview string.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it).
static const QgsSettingsEntryBool * settingsSimplifyLocal
void resolveReferences(QgsProject *project) FINAL
Resolves references to other layers (kept as layer IDs after reading XML) into layer objects.
bool simplifyDrawingCanbeApplied(const QgsRenderContext &renderContext, Qgis::VectorRenderingSimplificationFlag simplifyHint) const
Returns whether the VectorLayer can apply the specified simplification hint.
QgsMapLayerElevationProperties * elevationProperties() override
Returns the layer's elevation properties.
bool removeJoin(const QString &joinLayerId)
Removes a vector layer join.
Q_INVOKABLE void invertSelectionInRectangle(QgsRectangle &rect)
Inverts selection of features found within the search rectangle (in layer's coordinates)
void setRenderer(QgsFeatureRenderer *r)
Sets the feature renderer which will be invoked to represent this layer in 2D map views.
Q_INVOKABLE void selectAll()
Select all the features.
bool isEditable() const FINAL
Returns true if the provider is in editing mode.
QStringList commitErrors() const
Returns a list containing any error messages generated when attempting to commit changes to the layer...
QString storageType() const
Returns the permanent storage type for this layer as a friendly name.
bool readExtentFromXml() const
Returns true if the extent is read from the XML document when data source has no metadata,...
QString dataComment() const
Returns a description for this layer as defined in the data provider.
bool accept(QgsStyleEntityVisitorInterface *visitor) const override
QgsGeometryOptions * geometryOptions() const
Configuration and logic to apply automatically on any edit happening on this layer.
QgsStringMap attributeAliases() const
Returns a map of field name to attribute alias.
Q_INVOKABLE int translateFeature(QgsFeatureId featureId, double dx, double dy)
Translates feature by dx, dy.
Q_INVOKABLE Qgis::WkbType wkbType() const FINAL
Returns the WKBType or WKBUnknown in case of error.
virtual void updateExtents(bool force=false)
Update the extents for the layer.
void attributeDeleted(int idx)
Will be emitted, when an attribute has been deleted from this vector layer.
QgsFeatureRenderer * renderer()
Returns the feature renderer used for rendering the features in the layer in 2D map views.
void beforeEditingStarted()
Emitted before editing on this layer is started.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
Emitted when attribute value changes are saved to the provider if not in transaction mode.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
Emitted when attributes are added to the provider if not in transaction mode.
void setEditFormConfig(const QgsEditFormConfig &editFormConfig)
Sets the editFormConfig (configuration) of the form used to represent this vector layer.
Qgis::FieldConfigurationFlags fieldConfigurationFlags(int index) const
Returns the configuration flags of the field at given index.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Emitted when attributes are deleted from the provider if not in transaction mode.
QString displayExpression
void displayExpressionChanged()
Emitted when the display expression changes.
QVariant minimumValue(int index) const FINAL
Returns the minimum value for an attribute column or an invalid variant in case of error.
QgsFeatureIterator getSelectedFeatures(QgsFeatureRequest request=QgsFeatureRequest()) const
Returns an iterator of the selected features.
void setEditorWidgetSetup(int index, const QgsEditorWidgetSetup &setup)
Sets the editor widget setup for the field at the specified index.
void setConstraintExpression(int index, const QString &expression, const QString &description=QString())
Sets the constraint expression for the specified field index.
Q_INVOKABLE bool rollBack(bool deleteBuffer=true)
Stops a current editing operation and discards any uncommitted edits.
bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) FINAL
Read the style for the current layer from the DOM node supplied.
bool updateFeature(QgsFeature &feature, bool skipDefaultValues=false)
Updates an existing feature in the layer, replacing the attributes and geometry for the feature with ...
Q_INVOKABLE bool commitChanges(bool stopEditing=true)
Attempts to commit to the underlying data provider any buffered changes made since the last to call t...
void setFieldConfigurationFlag(int index, Qgis::FieldConfigurationFlag flag, bool active)
Sets the given configuration flag for the field at given index to be active or not.
QgsVectorDataProvider * dataProvider() FINAL
Returns the layer's data provider, it may be nullptr.
void setFieldDuplicatePolicy(int index, Qgis::FieldDuplicatePolicy policy)
Sets a duplicate policy for the field with the specified index.
bool setReadOnly(bool readonly=true)
Makes layer read-only (editing disabled) or not.
void editFormConfigChanged()
Will be emitted whenever the edit form configuration of this layer changes.
Q_INVOKABLE void modifySelection(const QgsFeatureIds &selectIds, const QgsFeatureIds &deselectIds)
Modifies the current selection on this layer.
void setWeakRelations(const QList< QgsWeakRelation > &relations)
Sets the layer's weak relations.
void reselect()
Reselects the previous set of selected features.
void select(QgsFeatureId featureId)
Selects feature by its ID.
QgsEditorWidgetSetup editorWidgetSetup(int index) const
Returns the editor widget setup for the field at the specified index.
long long featureCount() const FINAL
Returns feature count including changes which have not yet been committed If you need only the count ...
void setReadExtentFromXml(bool readExtentFromXml)
Flag allowing to indicate if the extent has to be read from the XML document when data source has no ...
void afterCommitChanges()
Emitted after changes are committed to the data provider.
QgsVectorLayer * clone() const override
Returns a new instance equivalent to this one.
QgsAttributeTableConfig attributeTableConfig() const
Returns the attribute table configuration object.
QgsActionManager * actions()
Returns all layer actions defined on this layer.
bool readSld(const QDomNode &node, QString &errorMessage) FINAL
Q_INVOKABLE void selectByIds(const QgsFeatureIds &ids, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection)
Selects matching features using a list of feature IDs.
QStringList uniqueStringsMatching(int index, const QString &substring, int limit=-1, QgsFeedback *feedback=nullptr) const
Returns unique string values of an attribute which contain a specified subset string.
void raiseError(const QString &msg)
Signals an error related to this vector layer.
void editCommandEnded()
Signal emitted, when an edit command successfully ended.
void supportsEditingChanged()
Emitted when the read only state or the data provider of this layer is changed.
void readOnlyChanged()
Emitted when the read only state of this layer is changed.
void removeExpressionField(int index)
Removes an expression field.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext) override
Sets the coordinate transform context to transformContext.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted whenever an attribute value change is done in the edit buffer.
static Q_DECL_DEPRECATED void drawVertexMarker(double x, double y, QPainter &p, Qgis::VertexMarkerType type, int vertexSize)
Draws a vertex symbol at (screen) coordinates x, y.
bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a single feature to the sink.
void setFieldAlias(int index, const QString &aliasString)
Sets an alias (a display name) for attributes to display in dialogs.
friend class QgsVectorLayerFeatureSource
void minimumAndMaximumValue(int index, QVariant &minimum, QVariant &maximum) const
Calculates both the minimum and maximum value for an attribute column.
Q_INVOKABLE Qgis::GeometryType geometryType() const
Returns point, line or polygon.
QgsRectangle extent() const FINAL
Returns the extent of the layer.
Q_DECL_DEPRECATED void setExcludeAttributesWms(const QSet< QString > &att)
A set of attributes that are not advertised in WMS requests with QGIS server.
void setAttributeTableConfig(const QgsAttributeTableConfig &attributeTableConfig)
Sets the attribute table configuration object.
virtual bool setSubsetString(const QString &subset)
Sets the string (typically sql) used to define a subset of the layer.
bool readXml(const QDomNode &layer_node, QgsReadWriteContext &context) FINAL
Reads vector layer specific state from project file Dom node.
void afterRollBack()
Emitted after changes are rolled back.
QString decodedSource(const QString &source, const QString &provider, const QgsReadWriteContext &context) const FINAL
Called by readLayerXML(), used by derived classes to decode provider's specific data source from proj...
void setDiagramLayerSettings(const QgsDiagramLayerSettings &s)
QList< QgsWeakRelation > weakRelations() const
Returns the layer's weak relations as specified in the layer's style.
const QgsVectorSimplifyMethod & simplifyMethod() const
Returns the simplification settings for fast rendering of features.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
void beforeAddingExpressionField(const QString &fieldName)
Will be emitted, when an expression field is going to be added to this vector layer.
bool deleteAttributes(const QList< int > &attrs)
Deletes a list of attribute fields (but does not commit it)
void updatedFields()
Emitted whenever the fields available from this layer have been changed.
QVariant defaultValue(int index, const QgsFeature &feature=QgsFeature(), QgsExpressionContext *context=nullptr) const
Returns the calculated default value for the specified field index.
void featureAdded(QgsFeatureId fid)
Emitted when a new feature has been added to the layer.
QString sourceName() const FINAL
Returns a friendly display name for the source.
QString attributeAlias(int index) const
Returns the alias of an attribute name or a null string if there is no alias.
void featureDeleted(QgsFeatureId fid)
Emitted when a feature has been deleted.
QgsBox3D extent3D() const FINAL
Returns the 3D extent of the layer.
Q_INVOKABLE void removeSelection()
Clear selection.
bool allowCommit() const
Controls, if the layer is allowed to commit changes.
QgsConditionalLayerStyles * conditionalStyles() const
Returns the conditional styles that are set for this layer.
void readCustomSymbology(const QDomElement &element, QString &errorMessage)
Signal emitted whenever the symbology (QML-file) for this layer is being read.
void reload() FINAL
Synchronises with changes in the datasource.
const QList< QgsVectorLayerJoinInfo > vectorJoins() const
bool renameAttribute(int index, const QString &newName)
Renames an attribute field (but does not commit it).
bool isSqlQuery() const
Returns true if the layer is a query (SQL) layer.
void beforeRollBack()
Emitted before changes are rolled back.
QgsAttributeList primaryKeyAttributes() const
Returns the list of attributes which make up the layer's primary keys.
bool writeXml(QDomNode &layer_node, QDomDocument &doc, const QgsReadWriteContext &context) const FINAL
Writes vector layer specific state to project file Dom node.
QString encodedSource(const QString &source, const QgsReadWriteContext &context) const FINAL
Called by writeLayerXML(), used by derived classes to encode provider's specific data source to proje...
void beginEditCommand(const QString &text)
Create edit command for undo/redo operations.
QString displayField() const
This is a shorthand for accessing the displayExpression if it is a simple field.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring, QgsFeatureId *featureId=nullptr)
Adds a ring to polygon/multipolygon features.
void setDiagramRenderer(QgsDiagramRenderer *r)
Sets diagram rendering object (takes ownership)
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geometry)
Emitted whenever a geometry change is done in the edit buffer.
QgsEditFormConfig editFormConfig
QList< const QgsFeatureRendererGenerator * > featureRendererGenerators() const
Returns a list of the feature renderer generators owned by the layer.
Qgis::FeatureAvailability hasFeatures() const FINAL
Determines if this vector layer has features.
bool moveVertex(double x, double y, QgsFeatureId atFeatureId, int atVertex)
Moves the vertex at the given position number, ring and item (first number is index 0),...
QgsGeometry getGeometry(QgsFeatureId fid) const
Queries the layer for the geometry at the given id.
int addTopologicalPoints(const QgsGeometry &geom)
Adds topological points for every vertex of the geometry.
void beforeModifiedCheck() const
Emitted when the layer is checked for modifications. Use for last-minute additions.
Q_INVOKABLE QgsFeature getFeature(QgsFeatureId fid) const
Queries the layer for the feature with the given id.
Q_INVOKABLE void invertSelection()
Selects not selected features and deselects selected ones.
const QgsDiagramRenderer * diagramRenderer() const
void setExtent3D(const QgsBox3D &rect) FINAL
Sets the extent.
Q_INVOKABLE bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues=QgsAttributeMap(), bool skipDefaultValues=false, QgsVectorLayerToolsContext *context=nullptr)
Changes attributes' values for a feature (but does not immediately commit the changes).
QgsMapLayerSelectionProperties * selectionProperties() override
Returns the layer's selection properties.
bool changeGeometry(QgsFeatureId fid, QgsGeometry &geometry, bool skipDefaultValue=false)
Changes a feature's geometry within the layer's edit buffer (but does not immediately commit the chan...
static const QgsSettingsEntryDouble * settingsSimplifyDrawingTol
Qgis::SpatialIndexPresence hasSpatialIndex() const override
QSet< QVariant > uniqueValues(int fieldIndex, int limit=-1) const FINAL
Calculates a list of unique values contained within an attribute in the layer.
void setFieldSplitPolicy(int index, Qgis::FieldDomainSplitPolicy policy)
Sets a split policy for the field with the specified index.
bool forceLocalOptimization() const
Gets where the simplification executes, after fetch the geometries from provider, or when supported,...
Qgis::VectorRenderingSimplificationFlags simplifyHints() const
Gets the simplification hints of the vector layer managed.
float maximumScale() const
Gets the maximum scale at which the layer should be simplified.
Qgis::VectorSimplificationAlgorithm simplifyAlgorithm() const
Gets the local simplification algorithm of the vector layer managed.
void setThreshold(float threshold)
Sets the simplification threshold of the vector layer managed.
void setForceLocalOptimization(bool localOptimization)
Sets where the simplification executes, after fetch the geometries from provider, or when supported,...
void setSimplifyHints(Qgis::VectorRenderingSimplificationFlags simplifyHints)
Sets the simplification hints of the vector layer managed.
float threshold() const
Gets the simplification threshold of the vector layer managed.
void setMaximumScale(float maximumScale)
Sets the maximum scale at which the layer should be simplified.
void setSimplifyAlgorithm(Qgis::VectorSimplificationAlgorithm simplifyAlgorithm)
Sets the local simplification algorithm of the vector layer managed.
@ Referencing
The layer is referencing (or the "child" / "right" layer in the relationship)
@ Referenced
The layer is referenced (or the "parent" / "left" left in the relationship)
static void writeXml(const QgsVectorLayer *layer, WeakRelationType type, const QgsRelation &relation, QDomNode &node, QDomDocument &doc)
Writes a weak relation infoto an XML structure.
static QgsWeakRelation readXml(const QgsVectorLayer *layer, WeakRelationType type, const QDomNode &node, const QgsPathResolver resolver)
Returns a weak relation for the given layer.
static Qgis::GeometryType geometryType(Qgis::WkbType type)
Returns the geometry type for a WKB type, e.g., both MultiPolygon and CurvePolygon would have a Polyg...
static QString displayString(Qgis::WkbType type)
Returns a non-translated display string type for a WKB type, e.g., the geometry name used in WKT geom...
static QString geometryDisplayString(Qgis::GeometryType type)
Returns a display string for a geometry type.
static QDomElement writeVariant(const QVariant &value, QDomDocument &doc)
Write a QVariant to a QDomElement.
static QgsBox3D readBox3D(const QDomElement &element)
Decodes a DOM element to a 3D box.
static QVariant readVariant(const QDomElement &element)
Read a QVariant from a QDomElement.
static QgsRectangle readRectangle(const QDomElement &element)
@ UnknownCount
Provider returned an unknown feature count.
double ANALYSIS_EXPORT angle(QgsPoint *p1, QgsPoint *p2, QgsPoint *p3, QgsPoint *p4)
Calculates the angle between two segments (in 2 dimension, z-values are ignored)
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
bool qgsVariantEqual(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether they are equal, two NULL values are always treated a...
bool qgsVariantLessThan(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether the first is less than the second.
bool qgsVariantGreaterThan(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether the first is greater than the second.
T qgsEnumKeyToValue(const QString &key, const T &defaultValue, bool tryValueAsKey=true, bool *returnOk=nullptr)
Returns the value corresponding to the given key of an enum.
QString qgsEnumValueToKey(const T &value, bool *returnOk=nullptr)
Returns the value for the given key of an enum.
QString qgsFlagValueToKeys(const T &value, bool *returnOk=nullptr)
Returns the value for the given keys of a flag.
T qgsFlagKeysToValue(const QString &keys, const T &defaultValue, bool tryValueAsKey=true, bool *returnOk=nullptr)
Returns the value corresponding to the given keys of a flag.
QMap< QString, QString > QgsStringMap
QVector< QgsPoint > QgsPointSequence
QMap< int, QVariant > QgsAttributeMap
QList< QgsFeature > QgsFeatureList
QSet< QgsFeatureId > QgsFeatureIds
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
QList< int > QgsAttributeList
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition
Definition of available properties.
#define RENDERER_TAG_NAME
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS_NON_FATAL
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS
bool saveStyle_t(const QString &uri, const QString &qmlStyle, const QString &sldStyle, const QString &styleName, const QString &styleDescription, const QString &uiFileContent, bool useAsDefault, QString &errCause)
int listStyles_t(const QString &uri, QStringList &ids, QStringList &names, QStringList &descriptions, QString &errCause)
QString getStyleById_t(const QString &uri, QString styleID, QString &errCause)
bool deleteStyleById_t(const QString &uri, QString styleID, QString &errCause)
QString loadStyle_t(const QString &uri, QString &errCause)
QList< int > QgsAttributeList
QMap< QgsFeatureId, QgsFeature > QgsFeatureMap
A bundle of parameters controlling aggregate calculation.
Setting options for creating vector data providers.
Context for cascade delete features.
QList< QgsVectorLayer * > handledLayers(bool includeAuxiliaryLayers=true) const
Returns a list of all layers affected by the delete operation.
QMap< QgsVectorLayer *, QgsFeatureIds > mHandledFeatures
QgsFeatureIds handledFeatures(QgsVectorLayer *layer) const
Returns a list of feature IDs from the specified layer affected by the delete operation.
Setting options for loading vector layers.
bool skipCrsValidation
Controls whether the layer is allowed to have an invalid/unknown CRS.
bool forceReadOnly
Controls whether the layer is forced to be load as Read Only.
bool loadDefaultStyle
Set to true if the default layer style should be loaded.
QgsCoordinateTransformContext transformContext
Coordinate transform context.
QgsCoordinateReferenceSystem fallbackCrs
Fallback layer coordinate reference system.
Qgis::WkbType fallbackWkbType
Fallback geometry type.
bool loadAllStoredStyles
Controls whether the stored styles will be all loaded.